Yep. Though I've only been speaking directly to Apple support staff (AppleCare). They have been passing along all my notes, screenshots, etc. to engineering and just relaying the responses from engineering back to me.
I also got another response since my last post above. Not sure what to make of it.
For one, they (engineering) stated to look at the steps to turn off notifications in their support article (
Entering text for Apple TV). That's an article I also found when I initially looked for solutions. Problem is, it mentions to turn things off using the no-longer-existent "Apple TV Keyboard" setting under Settings | Notifications. Are they tried to rub things in?
But the email went on to say "Apple has received reports of this behavior, and those reports are under investigation. Engineering has promised to reach out to me as soon as more information becomes available, and encourages you to keep software up to date".
So perhaps there is hope they will eventually address this?