If there is a bug, we will fix it. Bugs can be reported at https://bugs.webkit.org. We would never intentionally prevent web technology from working when a site is added to the Home Screen and opened as a web app.
Also wanted to point out that the user feedback in https://bugs.webkit.org/show_bug.cgi?id=249645 is not the way we should treat browser developers. (Not blaming the parent - I assume this is some other user being..... cranky?)
New wake lock API does not work in PWA, only works in Safari...
Apple is making sure that nobody will use PWAs.
https://whatpwacando.today/wake-lock