Keep "SIP" and "XMPP" protocol associations checked if you want Jitsi to handle specific web links. Click and then Finish once complete.
If you need multi-protocol support (SIP, XMPP) or legacy instant messaging features, use the original Jitsi Desktop.
To download Jitsi for Windows, you can choose between two main options depending on your needs: the lightweight for quick video conferencing or the legacy Jitsi Desktop client for advanced VoIP features. Option 1: Jitsi Meet Desktop (Modern Video Conferencing)