Was it the 9560 by chance? (The original AC / wifi5 one) Those were terrible. Our house isn’t practical to wire, so I had a lot of them. All swapped to AX210 cards (6E) and those work phenomenally.

I also dual boot, in addition to being an incurable distro hopper, and these AX210 cards worked out of the box in basically everything.

Yeah I’ve got a Lenovo Legion laptop that I dual-boot Windows and Linux. I haven’t tried in a while but for at least a year it was impossible to soft-reboot to switch OSes if you wanted wifi to work. My best theory was that Windows and Linux had different firmware that they loaded into it at boot and they weren’t reloading that after a soft reboot (just using whatever was already running on the card).