poor quality after jitsi update

check the js console in chromes developer tools for something like this:

BridgeChannel.js:88 WebSocket connection to ‘wss://jitsi.yourmachine.com/colibri-ws/default-id/6e93e6f16131917e//a6a42650?pwd=6iiknuitk9epkkh65n8q2ak1m3’ failed

It seems your update process switches you poorly (incompletely) from multiplexing to bridge websockets.

Check this:

https://jitsi.github.io/handbook/docs/devops-guide/faq

Additional hints:

1. In /etc/turnserver.conf you can remove listening-port=
2. Check the external-ip btw.
3. In /etc/prosody/conf.avail/jitsi.yourmachine.com.cfg.lua you can remove the stun and turn lines.
4. Check your firewall. Open tcp (udp?) 10000..20000 (syntax on OpenBSD: port 10000:20000)