Oh, come on ))) it's not a big deal...., it's just a minor issue - the model can't be exported )))))) it's not a problem, especially since you're thinking correctly - there's someone to ask (Hannik), so it's better to ask him, since he's done it before and knows how...
I heard that he's very busy at work right now, so he won't be able to do it quickly. I'll try it myself first; after all, I really want to learn how to port animations and skeletons into the game, I just haven't had the opportunity before.
I'll try it first on my old laptop, so I don't ruin my new one.