What I found is that many old apps have "password protected folders". Some video apps, some photos apps, some comic readers. This was to keep certain photos/videos/comic private. Many of those app expose all those "private" files via the Files app entirely defeating the purpose of having a password on them.
Apple doesn't allow porn apps and provides no way to side load. That's 1.3 billion people who are effectively being censored. And before you say you can still watch videos there are apps that do things videos don't. 3D games, real VR, etc... Apple has a whole list of things you aren't allowed to have in apps.
It is not remotely a tech centric view. People want things to work. Stuff doesn't work in Safari because it's missing features. User's also want to pay less. PWAs let companies skip the app store and therefore skip paying apple 30% of their transactions which means cheaper prices for users. If apple allowed other browser engines those engines would have PWA support.
Valve made the wrong decision. I bought an Index in August, sold it 2 days later. One reason was how washed out the LCD looked compared to the Rift (non-S). Another reason is the controllers are not porn friendly as they require 2 hands to put on. Hoping the HP coming soon will be a better upgrade.