I have some success with signed old driver with voodoo1/2 on a Windows11 system.
It needs to enable test mode. (bcdedit -set testsigning on)
The drivers modded with a test cert. It is based on windows2003 x64 drivers from http://www.users.on.net/triforce/glidexp/

uploaded the cert added drivers:
https://limewire.com/d/TckcX#jZpWeYN9Zf

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For test I used ASM1083 pcie-pci bridge adapter. Only a few games tested, carmageddon2 works but quake2/unreal not. For desktop i used the integrated gpu of the QTJ1 ES cpu, HDMI.

Im looking for a source for the XPDM 64bit driver for voodoo3/4/5, I'm not an expert programmer but i want to try recreate it in WDDM format. I think there are no wddm drivers for voodoo cards. V1 and V2 works with the XP X64 driver because they are not using the windows desktop.