fake media stream for different spec files

[dithomas01]

I need to mock different video files as a webcam device for different spec files.

on('before:browser:launch', (browser, launchOptions) => {
   launchOptions.args.push('--use-fake-ui-for-media-stream');
   launchOptions.args.push('--use-fake-device-for-media-stream');
   launchOptions.args.push(`--use-file-for-fake-video-capture=cypress/fixtures/${getVideoFile(specFile)}`);
});

With cypress 9 this works fine because the browser restarts before every spec file, but in Cypress 10 this has been disabled and now I'm not able to use different video file, because the before:browser:launch hook is only triggered once.
Is there a config to use the old relaunch behaviour? (or other ideas how to achieve this?)