It’s possible, but depending on the terrain, I wouldn’t generally recommend it. Fire roads and moderate XC where there’s little chance of a UPD should be fine. On more technical trails it won’t give you any advantage, is likely to get damaged, and could easilly damage you with the odd UPD or two.
Even on roads I have managed to bruise myself (and left blue paint on my shoes!) from UPDing - and I don’t UPD much!
That brake lever looks like it is asking to be destroyed on a UPD. Maybe it is just the pic, but it looks too close for comfort for me. I see lots of pics of people riding with their brake lever attached there though…I have the same brakes and if I had a T7 I think I would be afraid to place it there. Is there much clearance on a UPD? It looks like the T7 handle might just barely hit the ground first.