I'm not sure why you didn't bother looking this up before commenting but JPEG XL is royalty-free and open source. There were some concerns raised well over a ye

I'm not sure why you didn't bother looking this up before commenting but JPEG XL is royalty-free and open source. There were some concerns raised well over a year ago about some specific subset of JXL's compression and they were completely settled and it's a non-issue. Google's decisions have nothing to do with paying royalties or licensing fees.