It's definitely a culture thing, probably more at the company level but certainly country level culture matters as well.

At my San Francisco based fintech, the culture that's developed is:

For one-on-ones and small meetings where everybody is expected to participate, cameras are on.

For large one to many broadcasts (like an all hands) generally people turn the camera off.

But I would say probably 95% my meetings have cameras on, so I'm constantly "seeing people".