Are B2C AAD claims still not supporting security groups?

I wonder if the straightforward implementation of roles (not over MS Graph API but via the Radzen generated SecurityService) is still not supported by Microsoft. As I understood, the groups are missing in the claims. Does anyone know by chance if this is still the case?

In the Radzen documentation, it is mentioned that there are limitations when using Azure B2C for authentication. Sadly the link to further details about these limitations (which seems to be AD group related) is not valid anymore:

https://feedback.azure.com/forums/169401-azure-active-directory/suggestions/10123836-get-user-membership-groups-in-the-claims-with-ad-b

Is there another link that brings clarity to this? I just found posts from a few years ago about this.
Thank you for sharing your experience.
René

Oh-oh, I guess that answers my question. It seems to be a common issue.
Add app roles to Azure AD B2C to support applications roles/claims · Community
https://feedback.azure.com/d365community/idea/dbc5c7b4-b125-ec11-b6e6-000d3a4f0789
https://feedback.azure.com/d365community/idea/c76db28d-f38e-ec11-a81b-6045bd7956bb
https://feedback.azure.com/d365community/idea/13c266bf-fa6e-ec11-a81b-6045bd7956bb
https://feedback.azure.com/d365community/idea/88961977-b025-ec11-b6e6-000d3a4f0789
https://feedback.azure.com/d365community/idea/657cd6e0-b225-ec11-b6e6-000d3a4f0789