These types of comments about Apple not trying to improve their product, or improve it more than you want, are because they don’t have competition - you’ve clearly never worked in product development for a brand like Apple. They’re not making decisions based upon what other brands are offering or not. They’re building out devices that address what they see as opportunities in the market, which also help build out the Apple ecosystem AND provide benefits that they can market as different, unique, better, etc.
The other issue with Apple seemingly not launching new ground breaking specs on products, is that at the scale they operate, they often can’t launch certain technologies because they can’t get suppliers to build enough or build enough at the right price, in order to serve the volumes of customers they have. Mini LED is a perfect example, or even Micro LED, which they invested $800M years ago to help a partner build out a factory to produce micro LED panels. It’s where they want to go, but great ideas don’t always turn into great products, for reasons far out of Apple’s control.