Dog has a hole in his soft palette?

Basically the title. We just noticed it today. Not 100% sure it’s called the ‘soft palette’, just tried looking at diagrams. The dog doesn’t seem to be bothered, we just wanted to know if it was worth going to the vet. We tried looking it up, we couldn’t seem to find anything about it online.

Here is the image - is this normal?

Dog is a boy, 2 years old, weighs ~60lbs., and is a mutt.