What would be your steps for getting out privacy nightmare on xiaomi redmi note 5 ?

Looking for solutions to delete/opt out as much as i can from GAFAMs and other chinese closed-sources stuff ... im a noob and i feel lost right now ... would this be a good idea? https://gitlab.com/W1nst0n/universal-android-debloater/

Or should i think about Lineage OS or similar ?