I would really hope that this will give all the RISC-V open source effort some traction in the server / DC market. Certainly big corporations like Google, Facebook, Amazon and others could pull it off.
You can run your RISC-V cores on an FPGA if you’re really paranoid. Of course, you’d be sacrificing performance.
Xilinx was not.
Xilinx et al. are open enough about how their chips work imo. You are not going to find something like Intel ME on an FPGA.