I usually fall asleep to watching YouTube preferably adfree on my TV, screen mirroring can heat up the device, so for that sake I would probably need something like an Apple TV if chromecast just gives me ads
I don't see the appeal with slimmer phones when phones already are slim.
I would be more interested to see a smaller but thicker phone, wouldn't trade battery life for a slimmer phone
Maybe try wipr, heard good things about it