Honestly, no, they're not. Even the Gold Standard of PWAs - the Twitter Lite app that Google (the patron saint of PWAs) helped them build - provides an inferior experience compared to native apps.
People bring this up often - Apple refuses to improve Safari to bolster their App Store - which completely ignores all the valuable improvements Safari has made to give web apps more native-like features, like backdrop-blur for blurred backgrounds and CSS Snap points for native JS-less carousels. Chrome doesn't support either of these.
And despite it adding certain CSS standards, mobile Safari on the whole remains the IE6 of the mobile browser world. Apple drags its feet on web app standards support for a reason similar to why Microsoft dragged its feet with IE6 web standards support.