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the promise that minimizing friction reduces wear and extends drivechain life whilst remaining clean is oversold
The "remaining clean" thing has been misinterpreted. It's purely a claim that since there is no liquid lubricant on the chain, it can't wipe off on your socks/carpet/cat.
If you're going to ride in the rain, and particularly at this time of year when surface water turns into the kind of salt spray used to test anti-corrosion treatments, you want one of the KMC EPT or Connex SX range of chains and leave the factory lube in place.
It's pointless for everyday bikes. Waxing is for minimising friction on your race bike.