I recently picked up app development and I went for React Native + Expo. I was shocked that I could push OTA updates without going through the store. Basically if my app was approved once, I can make huge sweeping fundamental changes to the app without running it past Apple again. Basically the only things you can't change are the permissions. Anything else is fair game. And with Expo it was basically trivial to get an app up and working (don't take this as biased praise in favor of RN or Expo, I still have serious dissatisfaction with both technologies, but this particular part was shockingly seamless).

So I guess moral of the story, wrap your PWA in an Expo app and update as often as you want without having to resubmit.