We introduced `environment_scope` filter for project CI variables API in https://gitlab.com/gitlab-org/gitlab/-/merge_requests/34490 , however, we didn't add it for group CI variables. It makes the issue https://gitlab.com/gitlab-org/gitlab/-/issues/9912 unresolved for group CI variables. ~"Category:Continuous Integration" ~bug ~customer ~"devops::verify" ~"group::pipeline execution"