I waited for a long time for AndroidTV to update to 10 so I could play PS4 remote play on my tv. Just thought I'd let everyone know you can do it using chiaki sideloaded to your shield or other Android tv. The touchpad clicks don't seem to work, and the app has to be launched from settings, but very playable! Couldn't find anyone saying it worked for a long time, so I was just gonna try to help someone else!
I was like "great, I'll test this right now" and then I realized my ps4 is on the same Tv as my Android box...