If anyone wants a great adblocker for Android, try Blokada. It acts as a VPN for the device's whole internet connection and blocks all ad and tracker domains. You can customize what is blocked so that certain social media sites still work, or don't! It's a great app and there are very few downsides to using it.Magisk: Yes. Many rely on AFWall+ to block certain apps or use AdAway as an Adblocker. uBlockOrigin is no valid replacement as it only blocks ads in the browser, but not in apps.
microG: I personally do not use miroG or other google services. Also it is easily installed after flashing LOS for those who want it.