> is there such a problem? honest question. But I think that might be a different issue
Yes, that is a problem. We're still in a world where you need to manually enable port forwarding in order to get better seeding for bittorrent clients, and if you have CGNAT you're SOL (short of using a VPN or something to bounce through an external host).
It's likely because torrent software is older (& in crappier languages), and came about before CGNAT was a thing.
@sxan @shortrounddev jmp.chat uses XMPP, and it's a very viable replacement for Google Voice (and generic SIP options like voip.ms), so that's what got me back on the XMPP train. No one else other than my family is using it with me, though, but it's still nice to have SMS, (encrypted & decentralized) family chat, and IRC (via biboumi bridge) in one desktop client.