Edge is never updated for CU, it's locked to the same version. Your enterprise may decide to block Edge updates, or standardize on an older Edge release for business reasons. MS cannot just break your environment after every CU install.
Only a client re-install or Edge Updater will change the version.
Edge will be refreshed in the upcoming 22H2 W10 & 11 releases. Then it will be locked again for another year (23H2).