I don't know what's suddenly caused this, but I looked at my phone one minute and it was fine, and the next all of the folders on my apps screen had rearranged themselves. It turns out that the apps inside the folders are also rearranged, and that I can no longer move any apps or folders on the apps screen. I can still move apps on the home screen, but if I remove the apps screen and just have several home screens, then I can no longer move apps on the home screen either.
Restarting the phone has had no effect, although at some point the app folders rearranged themselves for a second time...I have several dozen apps and having them move on me is going to make doing anything efficiently rather difficult. If anyone has any advice on how to: a) stop the apps from rearranging themselves as they please, and/or b) allow me to regain the right to move them myself, that would be greatly appreciated.
Ah @lunaticore I wish it was that easy! Unfortunately I've already tried this, but it's actually only the apps screen that is affected, not the home screen. And my home screen isn't locked anyway. Thanks for your effort though.
Just an update to say that this issue still hasn't been fixed 🤧 I just got an s10 and I was so paranoid that the problem might magically transfer to the new phone that I downloaded all of my apps one by one instead of transferring everything! However I can confirm that on my new phone I can actually decide where to put apps on the app screen, so that's a relief
But then again I did have my s8 for 1.5 years before the problem arose, so I'm not exactly holding my breath...