vs UW Gift, I would do something like this:
+1 doomfall, +4 duress, +1 chandra, +1 glorybringer, +1 magma spray, +2 vraska's contempt
-3 soul-scar, -4 scrapheap, -2 disintegration, -1 eldest reborn
I'd probably keep the same default UW Control sideboard plan vs other versions of UW. I like Glorybringer more vs Benalia decks if they don't have Settle the Wreckage, but I think most still will. I would rely on Contempt/Doomfall to deal with Lyra rather than risk a potentially dead card like Unlicensed Disintegration.