Thanks for filing the bug. I don’t know if anyone on the desktop team has a 21:9 monitor, but they’re not exactly super commonplace. Likely less than 1% of users have one (based on some online public stats). They certainly should be supported, and a bug is exactly how we can track that. Thank you.
I don’t think it’s useful to have the bug conversation and another conversation here about it. So I’ll close this thread and we can keep the conversation going there instead.