EXT wrote:

Caution: The above advise only applies to the area the responder lives
in, in my area there are separate ground and neutral bars to use even in
the the main service panel. Although they are electrically tied
together, one is supposed to use the neutral bar for the white wires and
the ground bar for the ground wires - it also keeps the box neater.

Even so, either white or bare can go on either bar.