I know alot of people that do both and are very good at both. I know snowboarders that go to ski as a different challenge. I know more skiers that swap to snowboard and stick with it though.
I only ski uphill. thought about getting an AT setup but decided I'd be passed if I skinned up to the top of a nice line and didn't have the ability to ski down.... Splitboard won that battle.
Glad to see you posting again firstx