Ive worked remotely for... 7 years now and Ive probably had no more than 10 video calls for work in that time.
Asides from being much worse experience in terms of dialing in, sharing screens, etc, not seeing faces is so much worse. Inability to see emotions is terrible for team trust. We have 200 facial muscles that carry tons of information. We should use them.
If I needed to do video more often, I'd probably get a dedicated cam anyway, as it works when using external screen with laptop lid closed (which is what I do at home). But sure, that's not an option when traveling.