I only know German ones: senfcall.de or bbb.digitalcourage.de

the big ones out there are BigBlueButton and Jitsi. they have a lot of public instances, so you can easily check if they fit your needs.

every provider who supports aliases. like foo+baa@bzz.tld where everything after the + is exchangeable. so you can use a ‘different’ mail for every service you use and just block where spam comes from via the alias.

Has a mobile app!

Maybe have a look at the tool from 0&0 called “shut up windows 10”

+1 for DavX5 + nextcloud!

I wouldnt say thats normal … (at least here in germany).

Maybe consider using the isp device as modem only and use your own router?

Stating foss and not even linking the source is … hmm

For my taste way to many crypto bro/blockchain products listed. Also some very controversal apps with no comment on the contoversy.

Maybe you could improve that a bit :)

Despite you using the foss client of telegram there is no source for the server, signal has published it’s code.