9.9.9.10 is not a "canadian version". It's their "Unsecured: No Malware blocking, no DNSSEC validation (for experts only!)" address. See: https://www.quad9.net/service/service-addresses-and-features for more information about their different DNS addresses.
Quad9 is a Swiss non-profit. Check the rest of that page for more information on what they do and what they offer.
CIRA is the government sanctioned registrar overseeing the top level domain ".ca". As a non-profit built for this purpose, they have branched out to both DNS (as discussed here), as well as operating an Internet Speed Test.
Whichever way you go, don't get too hung up on this. Moving away from 8.8.8.8 (or even 1.1.1.1 if anyone uses cloudflares service) is your goal. Even going back to your Canadian ISP's DNS is going to be adequate as well if you just want to replace Google.
Like did you evolve your entire personality around the disturbing characters? Or did you watch them a couple times, quote a few lines here and there?
There is a line and if you are worried people don't like you anymore because of these movies you probably crossed into the former. The movies are not problematic, but unfortunately the way some people get into them is.
To emphasize: This is not automatically your fault because you enjoyed watching a show.
Media is full of things like this and there a few people that take fandom too far. They are characters and we are intended to hate the characters. Should we feel empathy as we watch their journey? Yes but empathy shouldn't forgive the crimes they commit. We can feel a connection to their pain but take the lesson and instead of idolize, try to do better.