> Not sure I'd use Google's DNS servers though. Your ISP's are probably better for both speed and privacy. You can test the speed with an old Google project called namebench [1].
Unfortunately my ISP's (Sky, UK) DNS servers aren't particularly reliable. My devices are behind the DD-WRT router that forces its own DNS settings (other servers are intercepted), but the rest of the family connects directly to the ISP router[1]. Multiple times I've been browsing the Internet without issue, but other people have been unable to use the Internet. Changing their device to use Google's DNS server resolved the issue.
[1] Been meaning to merge the two for a while, but haven't got around to it yet
I run dnsmasq on a pi as my ISP router is pretty limited. You can't even change the DNS servers, so the pi has to do DHCP too.
I use it to block other things like fixed banner overlays. With caching you can get it to work when you go off WiFi too [0].
Not sure I'd use Google's DNS servers though. Your ISP's are probably better for both speed and privacy. You can test the speed with an old Google project called namebench [1].
[0] https://unop.uk/block-bbc-breaking-news-on-all-devices
[1] https://code.google.com/archive/p/namebench