Solved MIGHT HAVE fixed slow loading web pages after having fiber to the home installed. Changed DNS server both IP4 and IP6. Is there a tutorial?

I just had Fiber to the home installed (944Mbpsdown/980 Mbps up). Blistering speed but when I would click on a link to load a web page in Chome/Firefox/Edge it would take 10-20 seconds to load if I was lucky. Some pages loaded quickly, a few others would simply not load. Doing some Google troubleshooting, someone mentions setting my Ethernet DNS server to Google. I tried it with just IP4 but no pages would load. I then tried setting BOTH IP4 AND IP6 to Google and now the web pages download instantly! What happened? WHY did it happen? Did I set my DNS settings correctly (looked for a tutorial but found only DNS over HTTPS which makes my DNS settings not able to save)? Did I do this correctly? Heh, I am confused! Happy I seem to have fixed my issue but still confused.
EDIT I disabled IP6 and things are working better with fewer hangups!

Here's an explanation with photos. How to Change DNS Servers on Windows 11

Solved! Hmmm. Somehow the issue fixed itself after using the internet with the new fiber install. ALL pages now seem to load extremely fast. No more waiting!

1.1.1.1 is faster than Google :)

https://1.1.1.1

wimorrison said:

1.1.1.1 is faster than Google :)

https://1.1.1.1

Click to expand...

They are all so quick now that It is dealer's choice. Pages load faster than I can use them so Google is fast enough for me. Looking up various DNS speed reviews shows both Google and Cloudflare at the top, with about half giving the nod to Google.