Oh god, I worked there 5 full years (over a decade ago now). They absolutely push you to hock that stupid card. They won't outright say you have to, but they'll sure make sure you feel it if you aren't. When I did sales it was constant metrics of how many cards you got out. They didn't even care of purchases were on the cards. I was literally told it was better for a spouse to get a second card than it was for a purchase to be put on an existing card.
When I switched to be a repair agent at geek squad where I had no time in front of customers I was still given shit daily for not getting cards. I asked how, how and when am I supposed to pitch cards? "Well, when you tell them their computer is broken". I was like 95% of the time it's covered by a warranty or something already purchased if it reaches me, and on the off chance it's not, they're going to just buy a new one more than likely. Then a salesman will get the credit. Zero awareness of how that side of the business worked.
It was awful. Literally told that I should offer that card with APRs higher than 24% to people who were trying to save money and not spend a lot "so they can have their dreams" or so "their son or daughter can have that dream college laptop". I had people ask me for it who I know shouldn't have taken out a credit card and who did anyway. It made me sick.
Best buy gets a kickback from Citi (at least at the time it was Citi) for every application.