SadmL
SadmL
I'm not talented in graphic-design too, but can offer you something (just got an idea)  or  (fast sketch in krita)
How about this? 
Yep, I'm ok Here you are https://long.af/urrdcc (MEGA disk link shorted via https://long.af - FOSS service)
I've encountered with same problem on Arch (Endeavour), Plasma 5.27 (Wayland), nvidia-dkms 545 (if I not mistaken). I've disabled smooth scroll and GPU rendering and there is no flickering anymore....
Check also here #347
If I know how to debug 😅 May be this will be helpful 
I don't think that is OS related, more likely just Firefox containers. For example I want to use Github for Crowdin login. Github in container 1 Crowdin - no container...
I've rebuild with latest https://github.com/cheeaun/phanpy/commit/58ccdf84fad03f24e04f815e6fed331813043f12 and looks like it's working now
Maybe implement like telegram on hover (and/or hold) on specific place? On hover and holding in specific place menu is appearing (right down corner, heart)  Hover on appeared menu...