I had a Labrador retriever that didn’t know how to swim. When he was a puppy, he fell off a dock while we were trying to teach him to swim and he refused to try to swim after we’d gotten him back to shore. (We weren’t trying to teach him to swim from the dock. We were taking in the view before heading back to shore and he misstepped.)
He loved water the whole rest of his life, but would only go where he could stand.