Merge branch 'master-patch-788e' into 'master'

Introduces an experimental category, and makes all categories open

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/116840



Merged-by: Phillip Wells <pwells@gitlab.com>
Approved-by: Sid Sijbrandij <sytse@gitlab.com>
Co-authored-by: Joshua Lambert <joshua@gitlab.com>
Co-authored-by: Hillary Benson <hbenson@gitlab.com>
Co-authored-by: Suzanne Selhorn <sselhorn@gitlab.com>
Co-authored-by: Tiffany Chen <tichen@gitlab.com>
Co-authored-by: Melissa Ushakov <mushakov@gitlab.com>