It's a big red flag for me when a guy tells me he doesn't use hookup apps at all. It makes me think he's insecure with his sexuality and maybe a bad lay or maybe emotionally needy or even mentally unstable. It doesn't mean he's any of these things. It means my guard is up.
I generally want to know something about a guy I'm going to hook up with, date or whatever. Apps allow me the space to do that.
On an app it takes longer to get to know the guy and decide you like the person and actually meet up. Whereas in person you just cut all of the getting to know each other part out in many cases and you end up sleeping around with someone you know nothing about.
My friends who claim to not use hookup apps have generally been celibate or living with their Xbfs thinking that a man is going to wait 6 months while they decide if they want to have sex and date the guy or not.
Then later on you learn they are on "dating" sites and not apps. LOL wut?

They were the ones making a big deal out of not using any apps.