Sonoma's Screen Sharing and Audio Requirements

I note with great interest that Sonoma’s Screen Sharing now supports streaming audio between connected Macs, at least in the “High-Performance” modes between Apple Silicon Macs.

So my question is this: is audio streaming just for this “High-Performance” mode, or is it going to work in the suboptimal cases? The answer to this ultimately decides whether it’s worthwhile upgrading my server Mini from Ventura to Sonoma. Otherwise, it’s back to this little hack which, though imperfect, has absolutely been shown to work gloriously well over long distances (for instance, from Turkey to London, while I was on holiday recently).

Input gratefully received, as ever.