You're not there for fun lol, you're there to pirate stuff. Sure, using Signal to pirate would be fine too but your anonymity depends on how long they honor their word of "no logs". Use a desktop version/ run a VM if you're on MacOS or something.

Everybody hates me when I say it but Apple users should really reconsider their choices if they are at all interested in privacy. Go get a cheap Android device, hope it has a kernel beyond 5.10 and KernelSU it.