LineageOS: TWRP or LineageOS Recovery (boot.img)?


I am a little bit confused by the terms. I have already installed TWRP on my FP3, and now I would like to switch between FP3 original firmware and LineageOS.

  • Can I still use TWRP to install LineageOS? (the wiki says to use Lineage Recovery).
  • Can I trust TWRP (not to leak data, etc.)?

Actually I am a confirmed Linux user, but the phone world is sometimes a bit confused to me.

Thank you by advance.