This has been complained of before (and just closed by Zoom staff). Your APIs don’t support any type of non-ascii characters. So, for doing things like creating attendee registrations, we’re unable to register people from a lot of countries which have non-ascii characters in their names. Never mind non-roman characters, you can’t even deal with simple ê (e-circumflex) gets munched.
When they join, they’re insulted that we botched their name. It reflects badly on us, and badly on Zoom. This is a discriminatory practice by Zoom, and you need to fix it.
You’re not a little company any more, Zoom. Please get with the times.