Does Layer 7 support route assertion to M365 graph?
Release : 11.0
The M365 graph APIs are http based, therefore you can use route assertion to send the GraphQL requests.
non-GA version for GraphQL/graphman in gateway,
https://techdocs.broadcom.com/us/en/ca-enterprise-software/layer7-api-management/api-gateway/11-0/release-notes/new-features-and-enhancements.html#concept.dita_newfeatures_refresh_gw10cr2_gw11cr1_non-ga