I'd say with modern hardware, like the xe Intel iGPUs on 11th gen Intel and up got driver attention quickly. Some things like realtek 2.5gb NICs took a little while to integrate but I think realtek offered kernel modules. I remember NIC compatibility was sparse when I started playing with it around 1999-2000. What trips me up is command flags on gnu vs freebsd utils, ask me about the time I DOSed the Colo from the jump machine using the wrong packet argument interval.