I have a QR Code on the back of my card to make it easier for people to import the data, but IMO the physical cards are still highly valuable. I use them as easy reminders about who to follow up with after an event, or to jot a couple of notes on while talking.
The contactless alternatives are neat, but they are always a hassle, IME, as the article also outlines.
However, pro tip. Blank back cards. People want to write notes about you and vice versa. Stop over designing cards with a back. A typical card is not a flyer. You should only hand them out to people you've met and talked to. That same card will fail as that hybrid business card/flyer. You'll never have enough info to justify expecting someone to go "huh, I just found this card somewhere without context and suddenly I'm compelled to talk to them".
I eat thousands of different things every week and I don't ask questions about any of them weekly. Do you? And would you think it's realistic to question everything all the time?
Plus, knowing that grapefruit helps metabolize different things helpful and cheapens your bartab. You'll get drunk faster after eating a grapefruit or two. Animal derived fats help slow down the inebriation process, like butter and a really greasy beef patty.