Ahh yes that is a really good insight about people with English as a second language. This is why I believe that the lowest hanging fruit are international teams, as they typically talk 24/7 in their native tongue and are not fond of typing in Slack from my discussions.

Still, I have seen that these folks still have presentations in English and with diagraming and such, they are able to articulate something that's more digestible than full on documentation. I think loom sort of videos would still be good for these people to diagram and demo things. We want to add something like this with video + screen broadcasting.

Yep speech to text won't be fluent with technical terms. I'm hoping it does 80% of the job, and then constantly improve it based on what you mentioned. Thanks for the suggestions! Perhaps starting with editable speech to text would be viable, while trying hard not to promote async communication to a point where people aren't conversing naturally as humans do but constantly stopping, editing and typing.