We're finding it quite effective to record short 2-minute videos and circulate those. Everyone can talk and point things on the screen, not everyone can write or even read attentively.
I think you may be making some unconscious assumptions about everyone having the same abilities. Deaf or mute people can't talk. Blind people can't point at things on a screen. And even people who can talk might be more comfortable writing, e.g. people who are self-conscious about their accent.
For these reasons, I think that the recent increase in remote work, though forced on us by the pandemic, gives us an opportunity to better include people who might be inadvertently excluded in an on-site environment.
Personal preference of course, but I'd be less able to express myself in a video recording than in an audio recording or written document, out of pure self-consciousness.
Self consciousness is an interesting problem. I prefer seeing faces on the screen during the stand-up (such as it is in the days of COVID), but I was told many hesitate to be on camera.
Did you ever find a way out of this? Join.me has very small video size, I imagine this is one way to lessen the stress. Alas it doesn't work for me - I need to see the facial expressions because I need to know when I lost the audience, and because I find it hard to pay attention to a disembodied (and heavily compressed) voice.
Getting people to turn on their cameras has always seemed to be a challenge in my experience, but it does seem contagious, once a few people do, everyone starts to over time.
It makes a huge difference to see peoples faces over talking into a void. I think empathy is a bit part of it.