When we went to LA with my girlfriend, we took the train (métro ?) as we are used to in Europe. It was really cheap, and covers a large portion of the city. The trip from LAX to downtown was a bit long though, and we had to change train at compton. Only poor people in the wagons, I remember this couple of young danish or swedish beeing scared shitless. In some touristic guides they tell people to avoid metro because it's dangerous, it looks like its not an exception in the US. Anyway, we were happy with the LA metro and buses...
I use RPi4, it works well except with some h265 where it really sucks, laggy video, maybe it is because of the software (I use raspbian+vlc). Otherwise its great, silent, Low consumtion, etc
Peak civilisation