Indeed. The only trainer we currently have for this game is a Steam trainer. (Void Bastards Cheats and Trainer for Steam).
I have never heard of a Steam trainer ever working on a Windows Store game (they have differences in their game engine code just because they’re from different stores, requiring a separate trainer).
The problem is that Windows Store is a very unpopular platform, which is why there are so few Windows Store trainers anywhere on the internet. I’d recommend seeking a refund from Windows Store and purchasing the game on Steam with the refunded funds.