last time i checked Signal doesn't support group video calling.

Also Group video calling features in apps like Facetime and Facebook Messenger are in a slightly different category from meeting centric apps like Zoom and Microsoft Teams.

I hope we get group video calls and video calls on desktop soon

I work at Signal on calling.

Non-group desktop calls are coming soon (hopefully hitting beta in a few weeks).

We're working on desktop group calls as well. That will take a bit longer, though. I don't have a good estimate of when it will be available

Excellent news. It would also be helpful if we could also get (missed) call notifications on desktop. Right now if someone calls and I don't have my phone with me, I don't see their (missed) attempt on the desktop.

Thanks for your work and looking forward to testing it out!