If you're using a "common browser" on Linux (Firefox/Chrome) Netflix should work, just at 720p for most of the content. If you're using a minor Chromium based fork the customized Chromium package provided by your distro it probably doesn't have Widevine by default.
The same is true for running a vanilla Chromium build on Windows, the big difference is the quality of content you can get on Windows can be higher than 720p in the mainstream browsers (as long as the rest of the system is compliant as well).
One correction to my message above: apparently Chrome on Windows is still 720p for Netflix, it was Edge that had 4k support. Or you can install the Netflix App on Windows too.
I agree it's a bit silly, but I think a lot of people don't really care about quality so long as they can watch it. I guess that'd also explain how Netflix gets away with such low bitrates for even the "high quality" versions of content.
I don't think I've seen Netflix comment on this since a long time ago, but back in 2018 it was:
- 15% PC
- 10% Smartphone
- 5% Tablets
- 70% TVs
In terms of viewing hours https://www.statista.com/chart/13191/netflix-usage-by-device.... So definitely most viewing on TV, but still something like 1/3 of households with TVs don't have a 4k TV at all (as of 2025) in the first place. Hard to definitively say more since Netflix & others don't seem to publish the numbers often.
I'd love to find out I'm wildly wrong though and have a bunch of people willing to push Netflix to have higher quality content... but so many people don't even seem to pay for the premium plan with 4k (anecdotally, Netflix doesn't seem to publish numbers on that) that I'm not holding my breath as I sit here with UHD Blu-Ray quality instead :D. It seems like most people just want something quick to turn on in the background than something to really sit down and bask in every detail of.
Yeah, and that leads to the DRM'd content in YouTube (like Movies & TV) not working for me in Kagi on Linux. Unless you're saying I've done something wrong and it really is working for you... in which case I may have some tinkering to do to find out what I did to break it :D.
One correction to my message above: apparently Chrome on Windows is still 720p for Netflix, it was Edge that had 4k support. Or you can install the Netflix App on Windows too.
The same is true for running a vanilla Chromium build on Windows, the big difference is the quality of content you can get on Windows can be higher than 720p in the mainstream browsers (as long as the rest of the system is compliant as well).