The page flicker issue is not just on mobile or when editing, im getting it just from loading some pages and especially when opening/closing spoiler'd images. (for example the dream thread that's linked on the frontpage is really bad with this)if you know how to fix the page flickering / font distortion effect on mobile phones when loading a page that has a lot of images or videos, let me know.
For reference, I'm using Brave on windows 10 on a 2560x1440 monitor. (maybe it's related to large/non-standard window resolutions? just guessing)