Doing that will most likely stop the game from launching or Uplay will see it's gone and re-download it anyway. May have to verify files via Uplay to get game to work again.
Game patched in a hotfix today, launcher seems to have been affected and in turn broke trainer.
[COMPLETE] September 28, 2020 - Hotfix to address crash issues post TU 3.0.0
The servers will shut down for a scheduled maintenance on Monday, September 28, at 9:00 UTC / 11:00 CEST / 05:00 EDT / 02:00 PDT to deploy to deploy a hotfix to address the crash issues post TU 3.0.0. on all platforms.
Estimated downtime: 3 hours.
Please follow this thread for any updates on the maintenance progress.
Thank you for your patience,
/Ghost Recon Breakpoint Team
Please use the update notification system to report a game patch, update or to report that the trainer may not be working with the latest version of the game. If 3 or more reports have been filed, consider BOOSTING the priority of this title for a faster turnaround on the updated trainer.