Chosen Solution

Apps buttons showing on the screen in all apps and homescreen. Doesn’t show on screenshot. Could this be due to hacking?? Or just phone glitching? How do I fix this?

Depending on the age of the device and how much you use it, this is screen burn and very common across the Samsung range. If in warranty I would advise to take back to samsung to get replaced/fixed otherwise a new screen will fix the issue. Nothing to do with being “hacked” at all. Hope this helps.