What do you mean it sounds like a device issue?? It literally IS my device issue and this whole post has literally mentioned that. Seems like you didn't read the whole post.....
You don't even need to read the whole post, I literally gave a note later
I appreciate that you took your time typing this but I just went to settings>apps>Special Access but I still couldn't find the "Display over apps" option. Well, I'm pretty sure I have enabled an option like that, if I didn't, the password managers couldn't have provided the autofill options ever
So far, Proton Pass is the best one and has got even better with the latest update. Now the autofill shows up 80-90% of the time which is a huge improvement
I use Samsung Galaxy Tab A9. I'm on Stock Android and no Custom ROM. My device isn't rooted. Factory Reset was already done when I took my device to the local shop to fix it. And Google Play Services and all other bloatware are indeed back. I have deleted the bloatware again with Canta and Google Play Services is disabled. I wonder if this happens because Google Play Services is disabled or something though...
I dunno if there is a permission like that. But in each case, I have always selected the password manager I'm testing as the preferred autofill service
There's one by the name of "FreeTube" on IzzyonDroid repo on fdroid