I use PWAs extensively and Firefox decided they won't bother to implement them, so that's going to be a no from me. Rather than wanting the web platform to be first class, they really want it to languish as a second-class citizen. Really sad, seeing as they also fired devs, and invested in "AI" instead.
What's the real use case of PWAs? They just seem like another way to attempt to shift users from the 'proper web' into a place where blocking ads is more difficult. Personally, I wish we could purge the vast majority of 'apps' from the world, they shouldn't be apps in the first place, most have no need to run native code, they should be links to websites, sites that can work on more-or-less any device in any browser.
I'm still baffled that mobile browsers don't have the desktop equivalent of F11. Or a console for that matter, the ADB is good and all but it's not always an option.