Though, this shouldn't stop one to pick their fights and savor the wins. The defeatist mentality is our biggest enemy, we will not be victorious in the end if we don't resist.
Let's hope an excellent implementation of RISC-V with eye for open-source, processing power, efficiency and affordability comes out so that we're not limited to the expensive (but otherwise excellent) Talos II by Raptor Computing Systems.
There can be. There are certainly Bios' that don't give options that motherboards are perfectly capable of changing. I had an old Phenom II that I managed to patch NVME support into the bios so I could boot off of a PCIe Riser.
Granted, I was patching UEFI stuff and none of it was open source -- but the idea is the same. Open source bios in theory, could unlock features.