I've never closed a channel as yet. Correct me if I'm wrong but when the channel is closed the balance of sats get "back on chain". It wouldn't be possible to have those sats be taken directly back into Liquid without 1st going into an on chain wallet which then needs to be swapped for Liquid? I know the definition of closing a channel is settling the balance on chain but I can see on chain fees being much elevated in the future so having the ability to skip those fees would make sense.