TYPO3 Core

Currently there is no way to create the default backend user groups that can be created via

bin/typo3 setup:begroups:default -g Both

From the TYPO3 backend. As creating backend user groups is a complicated task, expecially for new administrators I would suggest to
create a button "Create default user groups" if no user groups or none of those names have been created yet (see also https://forge.typo3.org/issues/105877)

This would make it easier for new administrators to get started using backend editors. It could prevent new administrators from "Granting administrative rights because they are unable to create a functioning backend editor"