brimforge said:

hehe, when did Luke get his X-Wing back ?

I forgot that he parked it on Cloud City (now off-limits for Rebels), but flying it later to Tatooine and Dagobah ... (*

I'm genuinely surprised this is an issue for some. It'd be like wondering if John Maclain ever gets his original shoes back in Die Hard.

We don't even know that the X-wing in ESB is the same one he flew in ANH. It's just a military fighter, it's not a personally-owned ship with sentimental attachment like the Falcon.

Maybe it was scrapped, maybe it was sold on/stolen or confiscated by the Empire. It doesn't really make any difference.