Is it possible to turn off or stop restic?
Restic is not a service by default. It’s a single binary. What is your environment (os, how did you install restic etc.)?
I found it on my jelastic container.
This would be something you would need to address with either your hosting provider or by looking at the documentation for your container image. We can’t know how they have configured restic nor the proper way to disable it in that environment.