Another question I have is whether the internal Nextcloud applications use java. I'm not sure how it works or if this could affect it.
Hmm, that's a good question.
I've been trying to "De-Google" my life... just to many privacy issues w/ them. I'm thought hosting my own mail server, but that looks like a complete PITA. I'm in the trial period of fastmail now... if I need to pay $30/yr.. that's fine... That would be the last step since I've got Only Office working via nextcloud (assuming this isn't an issue.. but I don't think any of the apps on the Linuxserver Nextcloud, use apache)