I owned a 2018 Grand Touring CX-5 (bought new) until about ten days ago.
I have a low tolerance for risk, and what I'd read about cylinder head cracks, defective valve lifters, and occasional transmission problems in 2018s spooked me enough that I decided to replace my 2018 with a new non-cylinder deactivation CX-5.
Specifications for the S Preferred trim indicate that it doesn't have CD, and although it lacks a few of the cosmetic upgrades of the Grand Touring, for the most part all the features I care about are included, so that's what I bought.
Beginning two or three weeks ago, while checking the Mazda inventory I started seeing 2025 S Preferred CX-5s with a VIN where the eighth digit is M. (L = without CD; M = with CD) So, that motivated me to pull the trigger and buy a CX-5 without CD while they're still available.
So, it looks like Mazda is phasing out the non-CD engine, even in the trims where CD is not in the specification. If anyone else is mulling the purchase of a new CX-5 without CD, the window you have to do so is apparently closing.