The peach begins to grow like a bush

A few years ago, a peach dried up, or rather froze. In its place, from the root, new branches began to grow, only they grew like a bush. Will such a tree be of any use?

there will be no benefit from this, plant new frost-resistant varieties of peaches.

If the branches began to grow from the scion, then the peach will bear fruit. In this case, you will need to shape the crown by pruning. If the branches come from the rootstock, then the tree will not bear fruit.

No, of course not, seat someone else

Most likely the branches grow from the rootstock on which the peach was grafted. Therefore, there is no point in leaving the bush, remove it and plant a new peach tree that is acclimatized in your area. And for the first two years, be sure to wrap the trunk circle near the root and trunk of the tree.

It is possible that you are right, but maybe some of the branches grow from the scion. You need to wait a year or two to see if there will be fruit buds there, if the peach will bloom, if not, then just remove it.