Recommended hardware for hostapd and 802.11ax?

I am looking to ditch some PoE Ubiquiti hardware in favor of a DIY approach with 802.11ax cards. What card would you recommend for long-range 802.11ax? Are there gotchas when hosting with hostapd with some cards, like binary blob drivers, incomplete support, etc. that I should know about? Is there any reason I should avoid doing...