Youtube videos stop constantly in the background

I have the problem that Youtube videos that I have running in the background stop at some point if I don’t have the screen on all the time and the browser in the foreground. I activated the “Play in Background” Option. Sometimes when the videos stop and I go to the browser, the videos completely reload and start over again. What could be the reason for this?

Have a Samsung Galaxy S22 Ultra 512 GB with Android 12