(From macOS 26.3 (work in progress) - #8 by November_Sierra)
Look like they did a lot of fixing of Safari.
And it appears to be faster, plus it plays better with Google services: I can actually use Google Meet (it would just buffer or hang forever) including the bells and whistles like background effects. I can also edit the details of a YouTube channel. (I haven’t been able to customize a YouTube channel in Safari in like forever.)