my hottest take is that:
solas is decent at handling halla, bc they were the most common transport/cavalry/companion animal back in arlathan, and that's one of the few things that survived the veil. even if he had some inherent Wolf Vibes, he probably figured out how to conceal them enough to work with halla, just bc they would be so common, and especially useful if running some kind of covert insurgency where people would be wandering through the wilderness a lot.
he is, however, terrible with horses. bc he had never seen one in real life prior to waking up. and he has no idea how to interact with them and is too snooty to ask, bc he thinks they're Cringe and Unsophisticated compared to the noble steeds of the elves. like "you need to put SHOES on this thing?? smh! how ridiculous! deer don't need shoes. and even the ancient elves didn't need shoes, bc we - i mean they - were built different-" and then he walks off over a snowdrift without leaving footprints. bc he's normal.
