Such group is present in elwiktionary, huwiki T109408, pswiki T133472, ptwiki T41905, urwiki T120348, azbwiki T109755, ckbwiki T54866, trwiki T40690. And it is grantable/revokable by bureaucrat.
Discussion: Wiktionary:Beer parlour/2022/September, Wiktionary talk:Interface administrators