Video calling things that have worked reliably for me:

• Signal: Just works.
• Jitsi: bare bones, but works.
• Cisco WebEx: Not used much, but not had any problems.

Video calling things that have mostly worked for me:

• Google Meet.
• MS Teams.

Both have had intermittent problems joining but have been fine when in.

Video calling things that have been horribly unreliable for me (excessive CPU usage, dropping connections, and so on):

• Zoom

Apparently Zoom is better if you install the app, but given that they left a vulnerability that let remote attackers turn on and stream your camera and microphone unpatched for six months after disclosure, they're never allowed to run code on any computer I care about outside of a browser sandbox.