Recently when watching media from any source I've started getting regular pop up adverts that block the entire screen and need to be clicked on to exit. I thought it might be one specific player, but it happens on all media sources, both APK's and Kodi based streams.

I'm not sure what installed APK is responsible and without completely removing and reinstalling everything, is there a simple way to deal with this?

Would an antivirus solution deal with this, or is there any other method to block unwanted popups, or identify the root cause?