I have Heynote configured to float on top of all other windows, to close to the tray instead of exiting entirely, and to open when I press a hotkey combo. I don't think I can do all of that with a PWA.
Uhh no... desktop isn't pointless unless you're wildly optimistic about the app website remaining online indefinitely into the future.
Whereas if I have an installer or an electron app, I can copy it to a thumb drive and install it years later on a totally different machine even if your website is long gone.
I personally dislike PWAs because they gave the deceptive illusion that you're installing an actual application as opposed to just a bunch of ephemeral stuff that's thrown inside the user data folder of the respective browser.
not entirely, requiring an internet connection at the start does limit use, e.g. lets say you need to travel and don't have an internet connection or just have your notebook out and about the PWA doesn't entirely cover that case
You can install a PWA shortcut which gives you even more desktop experience in the sense that it looks like an app separate from the browser.
That is what I do.
What are those corporate rules and how are they enforced?
Is it about storing data? Because Edna stores the notes on your computer, it's never sent to any server.