That won't happen, because PWA support relies on Google and Apple doing the right thing with their browser engine. Chrome supports PWAs, but could deprecate it

That won't happen, because PWA support relies on Google and Apple doing the right thing with their browser engine. Chrome supports PWAs, but could deprecate it at any time. Firefox bizarrely does not support it without a config flag enabling "site-specific browser". It's effectively unsupported as the majority of users aren't going to be messing around in the settings.