For example, I downloaded Tor network and using it for illegal activities. Can my govt track me? Can US govt track me? With Signal fiasco, I can't trust softwares that I'm not familiar with.

I know it encrypts something but if I remember correct, FBI was able to find some Tor users before.

Note: illegal activities was for example. I'm not going to do anything illegal. I'm just planning to serve my instance with a onion address.