I regularly comment on the Internet on my views on most schemes proposed to fix FOSS problems. They are mostly negative. I think that most of these schemes cannot achieve any meaningful impact. It seems that most of these disagreements come from the fact that I seem to work on different models of how FOSS work. Over the years, I have tried to share parts of my model. This is part of this endeavor.
NextCloud is pretty meh. Worst cloud storage I have used so far. A hosted NextCloud with just a few users is also surprisingly expensive. Self hosting is only an option for people with too much time.
Linux actually has a couple usable DEs.
Nextcloud works really well for me. You don’t need to use all the functions, I just use it for file sync. Of course, you have stuff like Syncthing if you want something simpler (and peer-to-peer!)