PWA of macOS

I quite love wefwef (ahem Voyager), building on the legacy of Apollo and filling the hole caused by the whole Reddit kerfuffle (obligatory fuck u/spez).

Due to being averse to everything Google, I only use Safari (FF if there is some kind of technical issue where Safari is causing issues). From what I gathered researching on the web, there doesn't seem to be any support for PWA in either of those browsers.

I'm currently running Voyager in a pinned tab, but if anyone has any suggestions to improve usability, I'd love to hear them. Thanks!