Fuck PWAs, I've seen some retailers who ditched it because it ended up hurting their conversions.
Certain demographics DO NOT want to see stare at fucking blank page with grey rectangles because it offers 'superior customer experience essential'. They want webpages that load fast, they don't even give a shit about Responsive designs.
Yeah, if the entire world was on 5g already, but even then, people simply don't trust PWAs vs apps from the Google or Apple store. In their minds, its safer because a large corporation is "looking after" them.
PWA and AMP are a dud, and the lack of adoption shows this.