As JT pointed out earlier, it is not currently practiced as far as we know by any religion.
More importantly, why make assumptions that it was copied from the goyim? Just because goyim may have done something similar doesn’t mean it was copied, abd that the reasons are all horoas heter.
This is unlike Chanukah presents, which people from our generation have observed was copied from goyim (albeit with a good reason, so that Jewish kids shouldn’t feel underprivileged when their goyish friends got presents on their chogo).
OTOH, schlissel challah being copied is mostly conjecture. When we are told Jewish reasons by big Jews, why be cynical?