Lucky I have chrome installed so click winkey + b on keyboard to brings up chrome, download and install other launcher .. almost solved all except 3rd party launcher cannot launch hyyptv app & settings due to permission denied. The workaround for now is don't set default launcher .. when press home on remote choose default launcher to launch hypptv & settings (and maybe all other default apps like browser (can't test as most system apps I disabled long before the update)) then home again to launch 3rd party launcher and run your installed apps.

Anything .. such as nova launcher, microsoft launcher, tv launcher & etc.
Fot me, I'm using ATV launcher.

Some of them .. https://uphilltechno.com/top-10-launchers-f...android-tv-box/

i'm using simple tv launcher, mine if iwanna use the hypptv i have to click back button twice and it will go to the hypptv launcher. when i wanna use my the launcher just hit home button on the remote.
the native setting also removed. I found it in root/system/priv-app but cannot execute the setting.