iTunes Music Sync from MacBook to iPhone

I use my MacBook as my "main" library for iTunes (not Apple Music) and then I sync to my iPhone. Often time it "undoes" many of my favorites. I have read that I should turn "Sync Library" off on my iPhone in the music settings. I have 2 questions

1) I can't find that specific setting. I have iPhone 13

2) If I turn that off can I still sync from my MacBook?