>Has PWA become popular on unencumbered platforms like Android or Windows? No.

Obviously. When a major Gatekeeper systematically holds it back to prevent it from challenging its taxation funnel, then it has no chance of competing and will thus not be chosen on competing platforms either, which will prevent its adoption and any investment in it.

>Even if unencumbered on iOS, it will still fail, because PWA is an intrinsically confusing technology.

PWA is not an "intrinsically confusing technology" and making such an absurd statement without proper elaboration reeks of pure bias.