If its ultimately a text editor with dead plain UI, why not simply stick to retained mode GUI and chill?
I don't know how much of disk space and ram this written in Rust® text editor project demands to just build it but since its Rust™, achieving cross-platform will probably be several-folds more work than it would be in C, I applaud the devs for their work.
I never tried Zed(yet) and keeping the support for vast programming languages aside, I would like to check out how this editor handles multiple workspaces and provide text editing features. I'm an Emacs guy and I have a feeling that this is not for me because even if its fast, it doesn't make me productive if I'm not using my emacs/vim key bindings. I might be wrong.