One shiny platform like for example Nextcloud to do it all might be nice for a lot of users when they have someone dedicated to maintain it. But for selfhosting (as in: mainly for myself) the constant attention needed to fix stuff was quite tedious.

I have run nextcloud for many years, I would love to know what this “constant attention” you talk about is.

Occasionally I need to run an “occ” command after an install to fix some indexes, but other than that I don’t do much?