Why have I strange red circles now on my Android desktop?
Just floating above everything. Not reacting to anything?
So, didn’t work out what caused it. A phone reset cleared it.
I had Planet’s Position app running at the time (the thing almost looks like a planet orbiting doesn’t it). However, I uninstalled the app and reinstalled it but the circles did not appear again. So, likely too much going on to pin it down to one thing or the other.