thanks to https://github.com/truedread/netflix-1080p
Microsoft Store:
https://microsoftedge.microsoft.com/addons/detail/oikpkeeoofpiapmjioabikmgjeaoggcn
This extension provides the following functions
1, all languages (audio and sub,if any)
2, Automatically select best bitrate available
3, Use the old style for some subtitles:
ro zh-Hans zh-Hant ko vi ar he hi th en es
In different hardware/software, your experience is different
In win10-64bit>1909 and edge browser(Non-portable)
1, Max 4K. About 4K
2, DDplus, Atmos(if any) Audio
3, Fix sometimes can not play 4K (from Netflix's BUG)
4, Lock the bitrate of 4K video to 12000 (Sometimes Netflix offers a 17000 bitrate, like 'White Lines'. But most of the time it's lower)
5, Use HEVC code, Downgrade from 4K to 1080P
Other OS And Browser(Includes portable edge)
1, Max 1080P
2, HE-AAC Audio (lower than DDplus)
3, AV1, VP9, AVC, and AVChigh, can be selected
ATMOS is very, very amazing
https://www.netflix.com/search?q=ATMOS
enjoy