Came here to say this same thing about NextDNS. Plus they'll block ads in apps, which uBlock Origin is not going to help you with. It seems like DNS ad blocking is a pretty good solution on mobile, with different pros and cons.

I do also use uBlock Origin on Firefox Mobile though.

You can definitely do better than use Blokada: https://gitlab.com/fdroid/fdroiddata/-/merge_requests/8536

Or, you can just set a DoT server that blocks ads by default.

or if you have root, AdAway can patch your hosts file.