I gave up on pestering them about it 10 years ago after they were largely unreceptive about the topic for several years, but it seems like it’s still a complete shitshow.
10–14 years ago I was grumpy because my laptop display had a smaller gamut than sRGB and everything looked bad (undersaturated). Then there were a few years in between where most of the displays I used were close enough to sRGB that missing color management more-or-less worked out. Now many devices have wide-gamut displays which basically make everything on the web look like oversaturated garbage.
Apple had color management more or less figured out on the Mac in the mid 1990s. It is absurd that it is still so hard for software made by gajillion-dollar companies to get the bare basics right >20 years later, especially now that we have superfast GPUs to do compositing in linear space and arbitrarily fancy gamut mapping using floating point arithmetic, brighter and wider-gamut displays, better cameras, ...
To the browser vendors: all untagged content must be assumed to be sRGB. If viewers have wider-gamut displays this content must go through a CMS. If viewers want to view wider-gamut images or other content, this must be opt-in. The current behavior breaks color on the web. (Buy a new phone or computer and suddenly nearly every color relationship you see on the web will be different than the designer’s intention.)