jrhack For myself, both. Although the small exception is a new(er) Intel graphics adapter, UHD 630, which can run on an older driver only released by Intel to OEMs, and that driver runs on old Windows versions which are comfortable for me. Newer Windows builds are uncomfortable for me no matter the hardware and driver. Also newer Nvidia cards which always dither are uncomfortable for me on any OS and driver combination.
As an example, there is no way I can make old Nvidia cards or otherwise usable Intel adapters comfortable on post 1511 Windows 10 builds. New Windows 10 just doesn’t work for me.
I am relying completely on outdated software and hardware to have a working setup.