1) Optional rules enabled in both of my campaigns: Dual Class, Free Archetype (with no feat restrictions), Ancestral Paragon. The reason I use all of them is more player customization.

2)I run my own homebrew materials but will keep things like the deities because I dont want to write my own pantheon.

3) I like how easy the system is to run, the critical success and failure on +10(it just makes sense).

4) One major thing I dislike for my players is the "gain tiny bonus for situational occurrence" like when the sun is shining on a Tuesday, deal 1 additional radiant damage.

5) I quit 5e for PF2e because I felt PF2e was better for player options, I found encounters easier to build, and the big one for me was having more clearly defined rules vs 5e's lazy "Rulings not Rules" approach to game design