I don’t know for sure about the 3, but the CX5 and CX9 definitely have touch screens but can only be used that way when stopped. The 2018 Mazda3 smart start guide says it also works that way. My wife didn’t even realize she had a touch screen until I showed her. I had an Infiniti with touch screen and knobs and I only used the knobs, they are superior for sure.
You just have to stay active. Even Google will be deleting inactive Gmail accounts. If you pay Tuta you don’t have to stay active, true, but it’s not the extortion you seem to want it to be. I don’t care if you use it or not but lots of people make this silly claim and it’s never as hard hitting as they think. I’ve paid for Tuta for awhile yet I remain active. It’s almost as if there are other benefits to being a paying customer.