If I have a laptop with two USB-C ports, but only one supports thunderbolt, that is because one is wired to the xHCI hub and the other is wired through PCI-e via the thunderbolt interconnect. The physical connection is the same, so there would be no reason for Framework to sell a "thunderbolt-capable USB-C".
If you're going to argue about something you don't seem to have comprehension of, at least try to consume the provided answers before you stubbornly dig in.