Bottom.
I shape my bottom lip (it’s the type of full that looks terrible if I fill in the whole shape), then do the cupids bow. I fill in any gaps if needed.

Same!!!
I’ve tried so many primers, but they never work. I use a hyaluronic serum as a moisturizer before makeup, and it holds my foundation much better! Add on setting powder and setting spray, and it basically doesn’t budge!

I’m a cosplayer, so my list has grown more narrow over the years, but for my personal makeup: blush, contour, foundation, lipstick.
I can manage it when I need to but I don’t generally like them. Blush and contour are too harsh for my soft features; unless I’m deliberately altering my face or highlighting my features, it just feels wrong. Foundation can feel stifling and my complexion is difficult to match, so I just try to skip it. I don’t like how full my lips are, so I try to avoid drawing attention to them as much as possible. I also work long days without many breaks to touch them up, so it’s just not worth the effort.