[pmarreck]

Does enforcing a single rendering engine make things like Progressive Web Apps (PWAs) possible?

(It's not just a link to a web app on the homepage, it can also hold state, receive notifications, and (within reason) take over most of the screen.)

https://web.dev/explore/progressive-web-apps

[agust]

Enforcing a single browser engine is in no way a requirement for PWAs, no.

Windows, macOS and Android all support PWAs while also allowing them to be run by different browser engines.