Well i didn't try uninstalling and reinstalling anything. I have this roccat app installed that you can use for adjusting RGB on it, profiles and updates to mouse firmware. Win 10 instalation is "old" and at the point where you just say "no point in cleaning so much accumulated junk" and just do a clean install. I have 4G router next to my PC that i use for internet. But mouses aren't wireless so idk about interference. Will try uninstalling mouse in device manager.
So i tried
this site to be 100% sure. and yes. Like 50% of the time it will register double click. Reinstalling driver did nothing
EDIT:
Fixed by following
this video. No double clicks registering any more on my Kone Aimo. It was an easy to fix mechanical issue. The other mouse probably same issue, but it's just an old backup mouse i keep around.