Revert to old UI Xbox
It's a fools errand to continue down the UI path in which you're going, I mean the entire thing just simply does not work to even a very basic degree from a UI standpoint, buttons don't highlight, everything is like a slug, 85% of twitch features are completely unavailable or inaccessible. Want to full screen? Change resolution? Tough, you can't access the buttons because the UI doesn't show you what is actually being selected.
It's not acceptable. It's objectively a massive regression from what existed for the better part of a DECADE. The only thing this update has accomplished over the past year is upset an entire viewing platform and make large portions of said platform stop utilizing your service entirely.
The only suggestion to make here is to revert to the old UI or completely scrap this one and design something that actually works and doesn't have its bones set in Microsoft Edge.