This last January at FOSDEM there was a panel with representatives from different browser companies. During the panel Kadir Topal, a web platform product manager at Google, indicated that because of the interest they saw in JPEG XL through the Interop Project that they changed their course on supporting it.
That is a very cherishable way to put it. In realty JXL has been on one of the highest request in Interop for at least 2 if not 3 years, and both Microsoft Edge and Safari have spoken about frustration of "certain features" not being implemented despite high number of votes.
They added it back as an experimental flag again. Likely the new rust based decoder and adoption in to other platforms and standards changed their decision.
This last January at FOSDEM there was a panel with representatives from different browser companies. During the panel Kadir Topal, a web platform product manager at Google, indicated that because of the interest they saw in JPEG XL through the Interop Project that they changed their course on supporting it.
https://github.com/web-platform-tests/interop
The video of the panel can be found at https://fosdem.org/2026/schedule/event/7E7387-browser_in_202... . He starts speaking on the issue at about 13:00