So far, Framework have been very poor/slow at providing BIOS updates (over a year with other mainboards, and still waiting for a FW13 AMD update with bug and security fixes).
In any case, they have previously stated that they do not intend to provide feature additions through updates
“On general philosophy is to have complete firmware out of the box when we launch a product. In general, we don’t plan to have new features that we add post-launch. Instead, post-launch updates are for issues that are found in the field or for security updates that we receive from our upstream firmware suppliers, which include the silicon vendor like Intel or AMD along with our BIOS supplier, Insyde.”