Harmonized search feature for groups

When I create a new direct message, in the field “Add users or groups…”, the search only looks for groups whose id or name begin with the prompt, not contain the prompt. It also doesn’t search in the groups’ description.

In addition to be tedious, it is inconsistent with what is done for users search. Can it be harmonized please? The search feature in /g and in the general search would be a good start (it does the “contain” part, but not the description search, which is acceptable to me).