I have been a fan of Quad9 for several years now and always set it as default for Windows computers with Sordum DNS Lock. I like the additional security, privacy and performance that it offers over default DNS.
I would really like to use Quad9 with Solus Budgie but have not had much luck poking around in the WiFi settings. All the tutorials for Linux on the Quad9 site seem to be unavailable, so perhaps it is not just me.
I would really appreciate it if anyone can give me a starting place to set my IPv4 and IPv6 DNS servers to Quad9
IPv4
9.9.9.9
149.112.112.112
IPv6
2620:fe::fe
2620:fe::9