there are a lot of replies in this thread so I don't know if a windows store version trainer was attempted to be made or not but it was recently added to gamepass, trainer 1.71 58341 successfully attaches to the game, however, there is an error message and the game crashes.
10:57:09: The Long Dark, 1.71 58341 (STEAM)
10:58:16: Successfully attached to tld
10:58:17: Failed using CreateThread. Trying manual map now...
10:58:18: ATTENTION: You're running a WINDOWS STORE / GAME PASS game but the trainer was for STEAM, the trainer or a cheat may fail to activate
10:58:18: player, Script error in line 18: 'GameManager:GetHungerComponent+200' is 0 or not a valid address
have yet to try other trainer versions
for 1.69 trainer I get
11:15:16: player, Script error in line 18: Cannot find aob for 'originalcode_8687'
game build version is 1.74 58755