Youāre right about Plex Web, at least on Windows. No HEVC support, much less HDR, so transcodes have that lovely washed out look.
It seems as if Safari supports HEVC. No idea if that means Plex Web on Safari direct plays HEVC.
I cannot test, as my MacBook is too old. https://caniuse.com/#feat=hevc
When Iām on Safari - I expect to see a dam Elephant to take a picture of and bag at least two poachers (leg wounds - no more sneakinā around in the Elephant patch).
I wonāt be watching TV - until the Bagged Poacher Report on the Evening News.
Iāll take your word for any other non-PC activity.