I don't think this is true at all. Very few people have cameras that use CF Express. Even professional photographers don't run out and replace a $3000 camera body because of a new memory card.Yep, Canon crippled the R6 with dual SD cards too. That doesn't change that the industry has moved on to CF Express. No doubt the most common card in use for pro's is CF given how popular the Canon 5D II, III, and IV are. But all of those are specialised tools and we don't scream out for a CF, CFast, and CF Express reader on the iMac.
The average consumer takes a photo and it magically materialises in their Photos app now. Before when Macs had SD slots it was far more common for people to buy a entry level DSLR with a kit lens and use that, but then smartphone cameras got good enough that the images to most are imperceptible to what they got out of those cameras that the entry level ILC market died.
I go up to Algonquin park in Canada every year for the fall colors, and I see thousands of people coming on buses from Toronto. They almost all are caring cameras ranging from full frame to micro4/3, add s me are just using phones, but most have an assortment of lenses for real cameras. Am I to expect these are all professional photographers? Even an inexpensive point and shoot camera like the Canon Powershot 180 blows away a smart phone camera since it has an 8x optical zoom giving it an equivalent 28-224 mm. Something an iPhone can not come close to.
Don't assume your experience duplicates what many others are doing.