It's no less of an issue for an online-based PWA. Where do you store login credentials or session tokens? In local storage. What happens to them when Apple decides to arbitrarily throw it away? The user has to log in again and again.
This sounds like a seriously poorly thought out idea. Want to clear tracking data from random websites I've been to? That's great. But you don't mess with the data stored by apps I have specifically _chosen_ to install on _my_ device.
There are many apps on my phone that I only use every once in a while, yet every single one of them remembers me. No matter how long I've been gone. Technology is amazing!
Where is Apple's famous UX here? What legitimate argument is there for clearing data of an app the user has added to their home screen?
This sounds like a seriously poorly thought out idea. Want to clear tracking data from random websites I've been to? That's great. But you don't mess with the data stored by apps I have specifically _chosen_ to install on _my_ device.