I found out about CryptPad through a video, I think. I’ve been using it for a while for some docs, and I find it quite useful. It has bugs, if you tab out and tab back in you sometimes need to reload the page to continue editing, it takes a while to load, but overall works well, has a good privacy policy. Does anyone else use it? Are there other services like it?
We use it mainly for organizing stuff as groups of varying sizes, and it works fine (for us). Selfhosting (with the AUR pkg) is pretty easy.