Or will it be for any team they've played for or even legends theme teams? If they only get the ×2 for the team that is shown in the card then I would guess that each team will be getting one UL card eventually?
This promo will last basically to the end of madden 23 update so yeah you can say that.
ULs get 2x Team Chems for teams they made the Pro Bowl or All-Pro teams with.
So for example, if Peyton Manning got an ULs card, he would get 2x Colts and 2x Broncos Team Chems.
Every team should be getting at least a few ULs by the end of the program as it should last until June or July.