This may be true for some breeds, but not for huskies. At the animal shelter, several people told me that they get many husky strays, because the dig under or hop over fences. They all, separately, recommended that I use an electric fence. Not believing them, and since I don’t like electric fences, I asked the vet, who said the same thing. I asked about a tall fence, but the vet urged me to get an electric fence. For other dog breeds, a fence is good enough. For huskies, a fence will not work long-term.
E: the vet also recommended a tether, since I don’t like electric fences. But I can’t bring myself to tether him. What if he gets wrapped up in something and gets hurt or killed? I won’t risk that.