Nvidia cards are unaffected.
Most AMD cards have reset issues with varying severity since at least the r9 series. Sometimes it only needs a host reboot after crashing or a hard shutdown of the guest, others need a host reboot after shutting the VM off normally. I think some of the r9/HD 8000 cards were fixed by a kernel patch, some RX cards(mostly Saphire cards I think) did not have any issues, and in kernel fixes for Vega and Navi are in the works, see-