DrJMun
Is this happening with that one particular app? Did you try clearing the apps cache and storage? Did you try to contact the developer?
Happening with random apps. Tried reinstalling the app. Even factory reset my phone as I mentioned earlier. Started happening after Android 10 update. So it's clearly a bug.
If you wanna reproduce the bug, try installing mx player and disable the data. It'll actually work as intended for a while but then the next instant app starts to download add and other stuff.