This is not exactly usual behavior, but your cat is definitely not alone in dipping its paws in its water bowl in order to drink.
Whether a cat will do this depends on the individual animal and the situation. Some cats are more tactile than others, and are more likely to use their paws sort of like hands instead of using their mouths. When it comes to the water bowl, a cat might be extra motivated to do this if there's something about putting its face in the bowl that it doesn't really like. It's theorized that many cats don't like the feeling up putting their head inside a bowl because their whiskers will brush against the side of the bowl, or maybe because it can't see its surroundings when its face is in the bowl, especially if the bowl is up against the wall.
Though I don't think this is a particularly concerning problem, it might be a good idea to try things to see if you can make the water bowl more appealing, so it isn't inclined to do this at all anymore, such as getting a bigger bowl, placing it in a more open area, and trying to keep it more full. The reason why I suggest this is because cats frequently don't drink as much as they should, and if the cat is showing signs it isn't thrilled about its water bowl, it could also be the case that it's drinking even less than it would be if it liked the bowl better.