What is this widget that appears in the top left corner on start up?

It seams to be without title, non summonable, and very skittish.

It shows some basic info that I would like to be visible at all times, but it seams to immediately disappear upon any interaction with the screen.
The only way to make it come back is to close the app and reboot it.

Any help is appreciated! I’m sorry if this is a covered topic, but I didn’t find the correct search terms to discover it.