Tracker Control on Android works well for system-wide tracker and ad blocking, and you can configure custom blocking rules per-app. Works without root by using a VPN profile (but no data leaves your device via the VPN, it just routes the traffic through this app).
This will be down voted, but I also tried a bunch of launchers and never found one I liked better than Nova. I ended up installing TrackerControl and Nova has its internet connection fully disabled. It doesn’t need Internet for any features I use, so I felt like this was a good compromise, personally. I ended up starting to block trackers in all my apps now because of it, so I see it as a net win.