You can install the apk from their website, it cannot be found on the Play store. It can block stuff at the DNS level. If you are on iOS then you can also do that and you can enable the extension for Safari.
I have started with PiHole, then played with AdGuard Home and loved it so much that it replaced my PiH. I kept it until I found Technitium, which can do all of those two can do and more as it can also act as an authoritative DNS. I would not recommend this to those not interested to really play around with DNS.
Long story short, I still have AdGuard on my iPhone but only use it with Safari as the dns filtering has been plagued by a bug and just drains my battery. The disconnect app can do that with little configuration to do. For pure DNS you could also get DNSsecure, I can pass you the link for iOS but it also exists on Android and it is open source :) apps.apple.com/fr/app/dnsecure/id1533413232?l=en-…
This allows you to change the DNS of your phone so it will override Google/Apple or your ISP
It is not Linux per se lacking support. This is due to those that make apps/games. And, in fairness, to the fact that dev in Linux has been a bit of a mess in the last few years, with all the Wayland & o shananigans
Yeah but the current version is based on Bookworm. In other words a lot of drivers are included on it and it is really plug and play. I have I installed it on a 2012 Air and everything just worked out of the box
Huh actually yes, I have one with TrueNAS on and have created a couple of Zvol connected over USB. It is not like having a big server but it does the job while using little power