Most dogs are, yes. I train dogs at an animal shelter, and I can tell you that not all dogs are motivated by food. Some will just turn their nose up at even the tastiest of treats. Some of those dogs might rather have a pet on the head or some praise. A rare few don’t seem motivated by much of anything.

But for the 80% case, yeah, grab some string cheese and a clicker.[0]

[0] https://www.rover.com/blog/clicker-training-dogs/