Superko kind of creates some weirdness with double ko seki and a number of other things can happen with unremovable ko threats and send two return one for instance.
Probably Black should pass now, and not capture the double ko
Then it’s probably a seki, where the first person to capture the double ko without an actual ko threat loses by the superko rule. Maybe it depends a little on resumptions, like if white passes and black passes, but then white resumes.
(edit: I suppose filling in your own area is a ko threat, lifts superko, but the opponent can just pass)
I feel like superko is just needlessly complicated to think about, especially when passes don’t lift the superko bans.