diff --git a/docs/core/services/authentication.service.md b/docs/core/services/authentication.service.md
index 383318e61f..c460dc8a06 100644
--- a/docs/core/services/authentication.service.md
+++ b/docs/core/services/authentication.service.md
@@ -50,10 +50,6 @@ Provides authentication to ACS and APS.
 -   **isALLProvider**(): `boolean`<br/>
     Does the provider support both ECM and BPM?
     -   **Returns** `boolean` - True if both are supported, false otherwise
--   **isAuthCodeFlow**(): `boolean`<br/>
-
-    -   **Returns** `boolean` - 
-
 -   **isBPMProvider**(): `boolean`<br/>
     Does the provider support BPM?
     -   **Returns** `boolean` - True if supported, false otherwise
@@ -66,10 +62,6 @@ Provides authentication to ACS and APS.
 -   **isEcmLoggedIn**(): `boolean`<br/>
     Checks if the user is logged in on an ECM provider.
     -   **Returns** `boolean` - True if logged in, false otherwise
--   **isImplicitFlow**(): `boolean`<br/>
-
-    -   **Returns** `boolean` - 
-
 -   **isKerberosEnabled**(): `boolean`<br/>
     Does kerberos enabled?
     -   **Returns** `boolean` - True if enabled, false otherwise
diff --git a/lib/core/src/lib/auth/basic-auth/basic-alfresco-auth.service.ts b/lib/core/src/lib/auth/basic-auth/basic-alfresco-auth.service.ts
index 69f9938537..62a2384217 100644
--- a/lib/core/src/lib/auth/basic-auth/basic-alfresco-auth.service.ts
+++ b/lib/core/src/lib/auth/basic-auth/basic-alfresco-auth.service.ts
@@ -317,14 +317,27 @@ export class BasicAlfrescoAuthService extends BaseAuthenticationService {
         return this.redirectUrl && (this.redirectUrl.provider === 'ALL' || provider === 'ALL');
     }
 
+    /**
+     * @deprecated use `getUsername()` instead
+     * @returns the username of the authenticated user
+     */
     getBpmUsername(): string {
         return this.processAuth.getUsername();
     }
 
+    /**
+     * @deprecated use `getUsername()` instead
+     * @returns the username of the authenticated user
+     */
     getEcmUsername(): string {
         return this.contentAuth.getUsername();
     }
 
+    /**
+     * Gets the username of the authenticated user.
+     *
+     * @returns the username of the authenticated user
+     */
     getUsername(): string {
         if (this.isBPMProvider()) {
             return this.processAuth.getUsername();
diff --git a/lib/core/src/lib/auth/oidc/oidc-authentication.service.ts b/lib/core/src/lib/auth/oidc/oidc-authentication.service.ts
index 5e17f95fc2..9d0eb77fdf 100644
--- a/lib/core/src/lib/auth/oidc/oidc-authentication.service.ts
+++ b/lib/core/src/lib/auth/oidc/oidc-authentication.service.ts
@@ -82,16 +82,6 @@ export class OidcAuthenticationService extends BaseAuthenticationService {
         return this.oauthService.hasValidIdToken();
     }
 
-    isImplicitFlow() {
-        const oauth2: OauthConfigModel = Object.assign({}, this.appConfig.get<OauthConfigModel>(AppConfigValues.OAUTHCONFIG, null));
-        return !!oauth2?.implicitFlow;
-    }
-
-    isAuthCodeFlow() {
-        const oauth2: OauthConfigModel = Object.assign({}, this.appConfig.get<OauthConfigModel>(AppConfigValues.OAUTHCONFIG, null));
-        return !!oauth2?.codeFlow;
-    }
-
     login(username: string, password: string): Observable<{ type: string; ticket: any }> {
         return this.auth.baseAuthLogin(username, password).pipe(
             map((response) => {
@@ -125,12 +115,17 @@ export class OidcAuthenticationService extends BaseAuthenticationService {
         });
     }
 
+    /**
+     * Gets the username of the authenticated user.
+     *
+     * @returns the logged username
+     */
     getUsername() {
         return this.jwtHelperService.getValueFromLocalToken<string>(JwtHelperService.USER_PREFERRED_USERNAME);
     }
 
     /**
-     * @deprecated
+     * @deprecated use `getUsername` instead
      * @returns the logged username
      */
     getEcmUsername(): string {
@@ -138,7 +133,7 @@ export class OidcAuthenticationService extends BaseAuthenticationService {
     }
 
     /**
-     * @deprecated
+     * @deprecated use `getUsername` instead
      * @returns the logged username
      */
     getBpmUsername(): string {
@@ -149,10 +144,6 @@ export class OidcAuthenticationService extends BaseAuthenticationService {
         this.auth.login(redirectUrl);
     }
 
-    ssoCodeFlowLogin() {
-        this.oauthService.initCodeFlow();
-    }
-
     isRememberMeSet(): boolean {
         return true;
     }
diff --git a/lib/core/src/lib/auth/services/authentication.service.ts b/lib/core/src/lib/auth/services/authentication.service.ts
index 6500a81b14..31b437db13 100644
--- a/lib/core/src/lib/auth/services/authentication.service.ts
+++ b/lib/core/src/lib/auth/services/authentication.service.ts
@@ -149,6 +149,8 @@ export class AuthenticationService implements AuthenticationServiceInterface, ee
     }
 
     /**
+     * Gets the username of the authenticated user.
+     *
      * @returns the username of the authenticated user
      */
     getUsername(): string {
@@ -160,7 +162,7 @@ export class AuthenticationService implements AuthenticationServiceInterface, ee
     }
 
     /**
-     * @deprecated
+     * @deprecated use `getUsername` instead
      * @returns the logged username
      */
     getEcmUsername(): string {
@@ -172,7 +174,7 @@ export class AuthenticationService implements AuthenticationServiceInterface, ee
     }
 
     /**
-     * @deprecated
+     * @deprecated use `getUsername` instead
      * @returns the logged username
      */
     getBpmUsername(): string {
diff --git a/lib/core/src/lib/auth/services/base-authentication.service.ts b/lib/core/src/lib/auth/services/base-authentication.service.ts
index b43e2592ed..f7f9be6ad7 100644
--- a/lib/core/src/lib/auth/services/base-authentication.service.ts
+++ b/lib/core/src/lib/auth/services/base-authentication.service.ts
@@ -40,21 +40,24 @@ export abstract class BaseAuthenticationService implements AuthenticationService
     }
 
     abstract getAuthHeaders(requestUrl: string, header: HttpHeaders): HttpHeaders;
-
     abstract getToken(): string;
-
     abstract isLoggedIn(): boolean;
-
     abstract logout(): any;
 
+    /** @deprecated use `isLoggedIn` instead */
     abstract isEcmLoggedIn(): boolean;
 
+    /** @deprecated use `isLoggedIn` instead */
     abstract isBpmLoggedIn(): boolean;
 
     abstract reset(): void;
 
+    abstract getUsername(): string;
+
+    /** @deprecated use `getUsername` instead */
     abstract getEcmUsername(): string;
 
+    /** @deprecated use `getUsername` instead */
     abstract getBpmUsername(): string;
 
     /**
@@ -110,11 +113,6 @@ export abstract class BaseAuthenticationService implements AuthenticationService
         return provider && provider.toUpperCase() === 'ALL';
     }
 
-    isOauthConfiguration(): boolean {
-        const authType = this.appConfig.get('authType') as string;
-        return authType === 'OAUTH';
-    }
-
     /**
      * Prints an error message in the console browser
      *