I use custom ROMs from XDA website. They are wonderful and open-source as they are based on Android which is also open-source. All you need to do is avoid flashing GApps (google apps package) or use MicroG (alternate to google service framework).
I currently have no google apps on my phone and it saves battery life much better.
Just stay away from google. Use ProtonMail or Tutanota Mail instead of gmail. And various other google apps alternatives can found on internet if you search "de-google Android". And also switch to DuckDuckGo search engine (they dont track you).
The only service I use is Youtube but I use it using a different client (get it on FossDroid or F-Droid).
I currently have no google apps on my phone and it saves battery life much better.
Just stay away from google. Use ProtonMail or Tutanota Mail instead of gmail. And various other google apps alternatives can found on internet if you search "de-google Android". And also switch to DuckDuckGo search engine (they dont track you).
The only service I use is Youtube but I use it using a different client (get it on FossDroid or F-Droid).