It makes absolutely no sense to have a windowless app. Why would anyone run photoshop without a window?

There are apps that they need to run in the background, sure. They have a spot in the menubar.

Oh no I forgot, you can only have 5 of them. Not 6. Why? Because FU. Go buy a third party app (bartender) that records your entire screen to do basic app management that the OS should do.

I hate MacOS.