Market place – My library. A plane from MSFS 2020 shows up but it is ‘not available’: Azurpoly - Transall C160. Although the plane has been updated for MSFS 2024 it does not recognize it as available.
Historically it could take a few weeks for the market to “catch up.” I wouldn’t expect anything different with MSFS2024, esp with the extra load of problems there are with the new product.