Ah, I too bite from the shiny Apple. I'm currently running Patched Sur on my mid-2012 MBP (Core i5, 16GB RAM, Samsung Evo 850 SSD). I'm glad it's working now. Give it a week and have a play around - the DNS over HTTPS/TLS/QUIC, DNSCrypt and other baked in features are quite nice and make for an easier life over Pi-Hole. I haven't spun up the latter for some time - mostly due to needing to mess with cloudflared or stubby for upstream DoH - but I might have a play in Docker to see what's new.