To be fair, Android also sabotages PWAs, it's just done behind your back. You see, in order to get a PWA to properly install, you'll have to use Chrome, and you'll have to have a Google Play account and Chrome will submit the PWA manifest for validation to a Google server, which in turn will decide whether the PWA is worthy, and if it is, it will generate a so called WebAPK, which is then installed on your device. If it's not worthy however, then it will become a bookmark instead, and many of the features that can be described in the manifest will not work at all.

So if you wanted to use a different browser or install a PWA without a connection to the internet, or without Google Play, all you get is a bookmark.