They (Android TV devices, mine was a FireStick 4K Max) also don't give a fuck about displaying things that are inappropriate; ours showed banners for horror films on several occasions, during the day when my children are about and scaring them.

It's much harder to switch out the launcher on a FireStick, but I did manage it briefly before it started boot looping right around 1yr of ownership, so it's e-waste now.