server.get('*', (req, res, next) => {
  const { protocol, originalUrl, baseUrl, headers } = req;

  commonEngine
    .render({
      bootstrap,
      documentFilePath: indexHtml,
      url: `${protocol}://${headers.host}${originalUrl}`,
      publicPath: browserDistFolder,
      providers: [
        { provide: APP_BASE_HREF, useValue: baseUrl },
        { provide: REQUEST, useValue: req },
        { provide: TEST_TOKEN, useValue: 'huest'}
      ],
    })
    .then((html) => res.send(html))
    .catch((err) => next(err));
});

@Component({
  selector: "app-root",
  standalone: true,
  imports: [CommonModule, RouterOutlet],
  templateUrl: "./app.component.html",
  styleUrls: ["./app.component.scss"],
})
export class AppComponent implements OnInit {
  private platformId = inject(PLATFORM_ID);
  private injector = inject(Injector);

  ngOnInit(): void {
    if(isPlatformServer(this.platformId)) {
      const val = this.injector.get(TEST_TOKEN); <---------------------------------
      const req = this.injector.get(REQUEST); <---------------------------------
      console.log({val})
    }
  }
}

Angular CLI: 17.0.0
Node: 20.9.0
Package Manager: npm 10.1.0
OS: darwin arm64

Angular: 17.0.2
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, platform-server
... router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1700.0
@angular-devkit/build-angular   17.0.0
@angular-devkit/core            17.0.0
@angular-devkit/schematics      17.0.0
@angular/cli                    17.0.0
@angular/ssr                    17.0.0
@schematics/angular             17.0.0
rxjs                            7.8.1
typescript                      5.2.2
zone.js                         0.14.2