FreeSoftware Ganoo

I have 443 open and don’t have any issues with endless captchas or anything you’ve mentioned.

Those are text bridges though are they not?

Does mumble integrate with Element?

Paying for a Nextcloud provider would likely solve most of your issues. You can run a lot of services within nextcloud itself using addons.

For video streaming I use kodi+seren+real-debrid. This doesn’t provide local copies, but I don’t really need any. It’s not hard to set up.

edit: https://github.com/nextcloud/providers#providers