UHD blu-rays didn’t even come out until 2016 which is years after any of the devices you listed. Also the discs themselves hold twice as much data as a regular blu-ray so it makes sense that playstations released before it even existed don’t have drives capable of reading the discs.

Actually not much more I think disney + ad free tier is like $16 now. Though I don’t think they- charge extra for 4k so there is that.