Hi OnlyAlex22, hope you're doing well. I'm Ian, and I'm happy to help you today.
Yes, it is safe to uninstall and reinstall the NVIDIA app without affecting your graphics driver. The NVIDIA app is separate from the core GPU driver, so removing it will not impact your graphics functionality.
In this case, NVIDIA driver remains installed and your graphics card will continue to work as normal. But the GeForce Experience features (such as game optimization, recording, and driver updates) will be temporarily unavailable until you reinstall it.
This is a user-to-user support forum, and I am a fellow user.
I hope this helps, but please let me know if you need anything else.