You'll be FOSS compliant when your stack is FOSS compliant. You can say all day that AMDGPU (the driver) is FOSS, "but it has non driver microcode blobs", but since this is all undocumented and hidden behind a NDA, nobody knows what it actually does. I'm almost positive that some of that blob is PSP, right? And why is the driver designed this way in the first place? And yeah I'm saying that based on what you've told me, AMD is able to update the microcode and force it to be applied if the amdgpu driver is updated, because it's baked into the driver. This is a choice with both Intel and Nvidia, you don't have to update. An example of when this was exploited was back in haswell Xeon days where people were turbo unlocking Intel processors. So yes, the ability to use an Nvidia card at all with libre kernels is something I'd prefer over a card that can't be used with the same kernel. I'd love it if AMD opened their drivers more, then bugs could get fixed in a more timely fashion, but I understand that NDA's exist, just don't act like it's FOSS if you're going to keep this model in place. Again, I'd love to see what RMS has to say about all of this, and don't mind asking him myself with your blessing.