There's also AdGuard, which acts as a VPN and blocks traffic on that IP, DNS, and (optionally, if you enable their certificate) HTTP/S domains. Because it works on the VPN level it blocks ads for all apps, not just the browser.

https://adguard.com/

Google won't allow the full version in the Google Play Store (probably for the same reason they're breaking adblockers on the desktop), but you can download the full APK here-

https://adguard.com/apk

Also trivially accomplished with PiHole or adblock on OpenWRT, and with a bit more work, Privoxy, SquidGuard, and related tools. Running your own DNS server (DNSMasq, Knot Resover (kresd), Bind) pretty much gives you carte blanche to do anything you want.

https://pi-hole.net/

https://openwrt.org/packages/pkgdata/adblock (see: https://github.com/openwrt/packages/blob/master/net/adblock/...)

https://www.privoxy.org

http://www.squidguard.org

http://www.thekelleys.org.uk/dnsmasq/doc.html

https://knot-resolver.readthedocs.io/en/stable/daemon.html

https://www.isc.org/downloads/bind/

Which would only help me on my phone, while I am home.

True. Though also for all other devices on that LAN.

There are device-based adblock systems that can be applied. On a rooted Android, you can run DNSMasq locally. For iOS there are adblocking apps AFAIU. Or you could (and perhaps should) run all traffic through a VPN, with adblock, when remote.

Brave [1] has an interesting native ad/script blocker too.

[1] https://play.google.com/store/apps/details?id=com.brave.brow...

Which is slower than extension-based blockers. https://dev.to/remusao/adblockers-performance-study-5b47

Doesn't Samsung's browser already have an option to install adblockers? I assume it's chromium-based.