I think if you're introducing yourself to people who'd like to hire you and haven't met you, it is normal etiquette to appear on camera. There is still a level of body language conveyed, even if it's just your face.
I think we all get not wanting to be on camera for every meeting, but surely it makes sense to present yourself on camera for the initial interview if you're able?
This implies that body language is accurate and useful which is not always the case. I'd argue that many who legitimately don't wish to be on camera have very good reasons for this. I do not enjoy being on camera or even talking on the phone. I also have ADHD which makes it very difficult to just sit still and listen/watch an AV feed for a significant period of time even if I know that what is occurring on that feed is very important. My brain literally doesn't care what my mind thinks/knows it's going to do what it wants/needs to do which is fidget, search for sources of stimulation, and in general do all kinds of things considered "rude" to do when having a conversation or attending a meeting. Nevermind that I'm absolutely still paying attention, but I can't JUST pay attention. A lot of this hesitation to appear on camera in situations like mine isn't because I don't actually like being on camera, I don't care, but the negative reactions me being on camera can cause because someone doesn't know me and my specific uh... "issues" means that I just prefer not do so if possible.
I don’t know about etiquette, but body language is generally not how I want to be viewed during a hiring process, on screen or in person. I’m not particularly talented at making appropriate eye contact, or not flailing inappropriately, or keeping my coffee mug from crashing on the floor. I’m very talented at engineering software. I’m sure many businesses would agree I’m not a good fit, and… well, too bad for them.
I've made it clear to bossmang that I don't really do customer contact. I got badly burned out in technical support decades ago, and it's still baggage I carry around, so I simply do not have a "customer service voice".
I'm hired to develop software, and I will do that to the best of my ability, but if they ever ask me to help out on the support end, I've made it clear what they can expect.
I think we all get not wanting to be on camera for every meeting, but surely it makes sense to present yourself on camera for the initial interview if you're able?