Firefox (w/ ublock origin), Firefox Focus, and the various on device VPN-style ad/tracking blockers (I use DNS66, there are others) make Android much improved o

Firefox (w/ ublock origin), Firefox Focus, and the various on device VPN-style ad/tracking blockers (I use DNS66, there are others) make Android much improved over system defaults if you are concerned about tracking or ads. None of them require root or other non-stock-OS modifications.