What problems?
What features were lacking from mesa or Cinnamon generally?
I have 4k 1440, 1080 monitor (120hz or higher) on Mint edge, what would I gain from switch to somethibg else?
plasma has wayland support, tons of customizability, better multi monitor support, a great suite of applications including a text editor with lsp support and much more, and in general looks nicer. cinnamon is sort of the bare minimum
mesa is outdated by default, not supporting rx 7000 cards unless you use the edge iso.
Cinnamons compositor doesn’t turn off for games (it’s supposed to but has been bugged for years) which costs you fps.
Playing Alan Wake 2 at launch was only possible with the latest Mesa drivers compiled from the AUR due to some graphics features that it required.