I don't think you're wrong just that the discussion warrant more nuance and less ego. On the the comment...

> You just draw it yourself.

This is disingenuous. It might be ok in Games not to have decent interop with the OS but for productivity tools, it is a requirement.

Which means you need to implement OS native interop (for multiple DE's in linux perhaps), accessibility for screen readers and you need to be smart with your rendering because having a function called 60+ times a second is a surprisingly big foot gun. All this across 2-3 very different (and currently diverging) operating systems.