> doesn't work on many Chrominum derived browsers because they can't consistently handle rich colour spaces.
Do you have any references documenting the problems with Chrome's handling of wide color gamuts? I can't seem to find anyone discussing the problem I'm seeing with the colors being clamped to sRGB. Maybe I discovered it a few months ago, but I seem to remember finding a discussion about it somewhere...
It works on Safari and Firefox, and in some cases, Chrome on Mac.
Get off Google-controlled browsers. Stop using Chrome in 2021. The open Web matters. Google is actively evil (Manifest v3 hindering uBlock Origin, AMP, FLoC, collusion deal with FB, etc).