A lot of people are saying they suffer the same and me and my friend have completely different devices with different Android flavours.

It doesn’t seem to be what you are saying.

Android 13. Looking in the other replies, it seems pretty wide spread.

Yep, I have it on my Poco F5 with MIUI and a friend that has a Galaxy S23 with stock OS also has the same issue.

Sure, they just need to fix their annoying bugs on Android.

Everytime I leave a tab open and switch to another app, it’s a 50/50 whether I return to a black screen and am forced to restart it or it just works fine.

Yeah, unfortunately it seems that the Google “can’t care to test updates” has been extended from some edge services to their main ones and only keeps on growing.