of course you can play

(most people with this problem just have some super wide screen and a higher resolution, that's why i didn't think of 4:3)
you just need to try a different screen resolution (for Enderal), 1280×720 should work.
if you disable Borderless Fullscreen in the "General" - tab you can manually add any resolution.
( to be honest, you may have to play around with the options marked in the screenshot,
not sure which one would fit in this case

)