I believe the parent means proper full-fat uBlock Origin. Not the neutered lite WebExtension Manifest v3 versions. Using real Firefox with uBlock Origin on Windows, macOS, and Android with sync is simple to set up and works great.
It is a cheap phone I think I got it new at $160 and that's the thing it has 8GB of RAM, the pictures are subpar (blurring) but other than that it works for me, multi-app non-game
This is on Verizon but yeah it'll just install new games and say "Enjoy these new apps" I'm like wtf I think most recently one of the games it installed is Mahjong