In the Support Portal Download Page, newer versions of tiles appear to be missing the value in the "Release Level Info" column. See example in the following screenshot.
VMware Tanzu Platform
There was a recent change in Release Management that intentionally removed the Release Level Info for newer versions of the tiles.
If the release level info is needed (such as for automation script purposes, etc.), then the Packlist ID value can be used instead, as it is the same ID. The Packlist ID can be seen from the specific Release page. Click on the specific Release version from the page that shows the list of releases, and the specific Release page will be presented as below. Find the Packlist ID in the section just above the column header.