Genuinely curious... why do you see the need to back up git? Even if I don't want to push to a server, I use a different disk or USB as an additional remote in

Genuinely curious... why do you see the need to back up git? Even if I don't want to push to a server, I use a different disk or USB as an additional remote in git and push to that. Although I do that only for financial data, so only done once a month so it's not too big a hassle.