Wax. It's just a different process.
My main incentive was to minimize getting chain gunk on stuff. My bikes are stored indoors. I was getting chain gunk of my pants, legs, cats, anything I brushed against. With waxed chains I just wipe 'em down with a leftover paper napkin, whatever's handy. The residue is about like graphite powder from a pencil sharpener.
But it turns out the friction is low too. Depends on the type of wax treatment.
To keep it simple I used plain Gulf paraffin/wax, melted in a Little Dipper crock pot I had in the cupboard and never used. Used that for about 8 months now. No complaints. Lasts 2-4 weeks between treatments, depending on how much I ride and conditions -- whether it rains or I ride through puddles.
I used a thinner application of paraffin at the beginning of this month and wiped off the excess with a rag dampened with mineral spirits. The drivetrain had the least friction I've experienced with my 1980s road bike. But wiping off all the excess also reduced the time between wax treatments -- on Saturday's ride I could hear some chain noise about halfway through. So I got about 260 miles so far from that treatment. Before I was getting about 400-500 miles, but with more subjectively felt drag. It's a trade off.
There are also some drip/drizzle-on dry lubes. Probably easier if you don't already have a spare crock pot or double boiler.