I've used Quill before, but I have Editor.js, Slate, and Tiptap2 on my to-do list to check out, probably for similar reasons as yours.

Problem i got is that i have to be able to support html documents from old tinymce as well as being suitable for use with collaborative editing with something like ys.js. I might just have to bite the bullet and write a html to some other representation parser.

- https://discuss.prosemirror.net/t/prosemirror-for-live-editi... - https://prosemirror.net/examples/collab/#edit-1 - https://docs.yjs.dev/ecosystem/editor-bindings/prosemirror

I think lexical is the future

Relevant discussion on prosemirror forums https://discuss.prosemirror.net/t/differences-between-prosem...

Neither, use prosemirror.

Check out write-down.