I am trying to create my Site Owners group as the owners of every group on a SPO site under "Group Settings." When I enter the name of the group in the people picker field, it keeps coming up as "No results found." I've gone to the People & Groups and can see this group has been created. Why does it not appear and how do I get around this? I don't want to have one singular person responsible for permission group management for an entire site. Any thoughts?
Per my test, the Owners group is not visible in the people picker.
From official article, "the Office 365 Group owners is added as hidden principal to the site's owners group and site collection administrators".