State of HDR/4K/offline for streaming Netflix/Hulu/Stadia/Prime/HBOMax/Plex/YouTube on Macbook

Test Rig: 14" Macbook Pro 2021 M1 Max, MacOS 12.1 (21C52) MacBookPro18,4

1 2	Test Rig: 14" Macbook Pro 2021 M1 Max, MacOS 12.1 (21C52) MacBookPro18,4

Browsers: Safari Technology Preview Release 137 (Safari 15.4, WebKit 17613.1.11.8) Safari 15.2 (17612.3.6.1.6) Chrome 97.0.4692.71 (Official Build) (arm64) Firefox 98.0a1 (2022-01-15) (64-bit)

Provider	Max Resolution	Offline	Playback Speed
Netflix (Try Test Patterns, Netflix and Youtube are serious about quality and give users the power to know!)	UHD 4K at 60fps in Dolby Vision HDR in Safari and Safari Technology Preview. Airplay-from-iOS is blocked by Netflix.	No way to watch offline on MacOS. (Maybe Netflix Win10 app on Parallels? But that doesn’t do 1080p+ as Parallels doesn’t do HDCP2.2. That offline is limited to 720p SDR)	Officially: 0.5x, 0.75x, 1x, 1.25x, 1.25x. More speeds possible with browser extension like Accelerate (sadly, not open source). VSC works too, open source.
Amazon Prime Video	1080p, SDR in Safari. 720p in Prime Video app (iOS App port). SD (480p?) when doing Airplay-from-iOS.	Prime Video app supports offline in 720p SDR.	Accelerate (not open source) works in Safari. VSC works too, open source. No controls in the app, sadly. 0.5-2x supported in Airplay-from-iOS.
Stadia	4k 60fps in Chrome. SDR only, no HDR for computers for some reason	Not applicable	Not applicable
Disney+ (Plus)	UHD 4k, 1080p, HDR, (in Safari, Safari TP, Chrome, Airplay-from-iOS)	No way to watch offline on MacOS	Accelerate (not open source) works in Safari. 0.5-2x supported in Airplay-from-iOS. VSC works too, open source.
Youtube (advanced affordance and power user controls)	UHD 4k HDR 60fps in Safari and Chrome (VP9 HW decode). 8k60 not available in Safari; it stutters with lots of framedrops in Chrome; AV1 software decode. 8k 30fps HDR works smoothly. HDR10+ also supported (anyone know a good test video for this?). Firefox limited to 4k60 SDR only.	Offline support in Chrome at max of 1080p 60fps HDR. For anything higher, YT-DLP works.	0.25-2x officially. Frame scrub with `,` and `.` keys. Accelerate (not open source) works well. VSC works too, open source.
Hulu	720p SDR in Safari/Chrome. Maybe 1080p when doing Airplay-from-iOS.	No way to watch offline on MacOS	Accelerate (not open source) works. VSC works too, open source. No official controls.
Peacock	720p (or lower) in Safari/Chrome.	No way to watch offline on MacOS	Accelerate (not open source) works. No official controls. VSC works too, open source.
HBO Max	1080p SDR in Safari/Airplay-from-iOS.	720p offline in HBO Max app; iPadOS port, so can’t fullscreen videos interestingly, black bars on both sides lol.	Accelerate (not open source) works but doesn’t show the overlay. VSC works too, open source. No official controls.
Plex (with Infuse as the client player)	4k, HDR10, Dolby Vision	4k, HDR10, Dolby Vision. Full support, including file access	Granular controls from 0.25x to 2x. More possible with offline file access in a player of your choice.