Is it possible to create a screen that is only a small part of the whole screen?

Hi all

Up until now I created an app that its screen takes the whole screen.

Is it possible to create an app that its screen is only a small part of the whole screen?
Like a small overlay, that is always on top, even when you move focus to another app.

Thank you

Our dearly @11119 made this tool in such conditions :saluting_face:

You may found it helpful

or

So it is possible, but not with built-in abilities,
but with Extensions.

I see.

Thank you both.

No, I can confirm that it’s not possible, I’m sorry :confused: