Ok so I took a look at XDA forums and I found this thread for TV box devices. Seems like there is an unofficial build of LineageOS for the Google Chromecast with Google TV which should be available worldwide https://forum.xda-developers.com/t/official-unofficial-lineageos-19-1-for-amlogic-g12-sm1-family-devices.4313743/

Doesn’t seem to be available anywhere. Any other suggestions?