How can I set a 360 image as a background on a 2D game?

Ok, I’ve seen a couple answers that helped me in the past, but I didn’t see any questions asked for what I intend to do in my project, so I’ll try asking here.

Basically I’m trying to see if I can set up a 360 image as a background in a 2D game. I can’t just put the background image on a plane, because the 360 image would look distorted since 360 images aren’t meant to be put on planes and it’d make it look weird. I tried putting a skybox as the background, but although the skybox is visible in the scene, the background is black when you’re executing the game, and I also don’t think that might be the simplest solution.

I get the feeling there might be a simple solution to this, but I tried different methods and none of them worked. Is there any way I can achieve this?

Thanks in advance!

I’m starting to get the feeling nobody else tried this, yet. Oh, man.