Tried all of the slots, nope :/
Looked at my BIOS options, there's just PCI gen switch control (1—4) for PCI_E1 and PCI_E3, plus PCI_E1 lanes (x1, x4, x8 etc).
Staying on Big Sur. Don't need Monterey that much, just wanted to test the new Metal GPU rendering in Blender. It sucks, coz it's at a...