yep… I write all my papers in Google because I can access the files anywhere, and nothing beats PaperPile for referencing yet.
I recall spreadsheets being particularly painful on mobile when I’d try to select multiple rows and it would select way more at a time but would need to fouble-check that or find a screen recording if I made one at the time.
The main issues is there was a bug where if there is an open session for a document in Collabora (including dead sessions say from mobile) and that Collabora server is shut down in the wrong order, then all changes including if you click “Save” will be lost. A bug was opened for this and closed by making sure the servers shut down in the correct order, but I don’t know if that fixes cases where the servers a hard shutdown.
Some youtubers like Networkchuck and Chris from BigBearTechWorld. Especially the last one convinced me with his structured and kind style. His Discourse forum is really helpful.