What would you do with this useless room?

[HangryDoughnut]

Marked as study/snug on the floorplan. It's part of the most illogical side return extension that may as well be made of bloody cardboard.. it measures about 2m x 2.5m but there's either a door or window on every wall and a 30cm pillar jutting out between the windows..

I was thinking some kind of boot room but I just can't figure out how to make it work!

Could you do something like this?

https://uk.homary.com/lditem/modern-60-extendable-white-kitchen-island-with-storage-faux-marble-kitchen-cabinet-43154.html

Then it's storage but in the middle of the room so easier for windows and you could also use as a dining room

Also, apologies if I sound dismissive, there are lots of good ideas and things to think about here.
It's hard to stop thinking of it being a glorified shed stuck to the house when I probably would've got more use from the original courtyard!