User blog comment:MisterWoodhouse/The first migrations to the Unified Community Platform/@comment-36153576-20201229113509/@comment-1038387-20201231001545

I use the Source; both Source and Visual Source work fine for me. Never cared much for Visual, I started editing before that existed.

I've not received any complaints of unusability from anyone on my communities. Judging by the edit tags, people are editing with no issue on all editors. That includes Visual on mobile. Check whether you use a supported, up to date browser and current OS.