Yep, that’s correct. Following suit from the upstream RHEL 8.10, this will be the last minor release but continue with updates for 5 more years (until 2029).
Should be noted that barring some extraordinary circumstance, no new ISO files or boot images will be produced during this time. My understanding is the Docker/OCI images will continue to receive regular updates, as they always have. But official boot media production will effectively end after 8.10’s release.