Xbox One (2013) sold 50 million Units compared with PS4 (2013) selling 113 million units.
Xbox X/S, their 4th gen Xbox, has sold less than 21 million units since 2020, when it was released, compared with PS5's 38 million units in the same timeframe.
Tbh, the latest gen of consoles is pretty underwhelming for me, I don't know how others feel.
This graphic from Microsoft shows clearly why the console industry is struggling. https://news.microsoft.com/wp-content/uploads/prod/sites/642...
The S is pretty readily available but is less powerful than the previous mid generation upgrade, the Xbox One X. Given that until very recently most games supported both generations there was basically no reason to upgrade from a One X to a Series S
https://www.microsoft.com/en-us/store/collections/xboxseries...
Practical computing performance plateaued like 10 years ago, which is why you're feeling unsatisfied. This applies to all markets of computing besides enterprise: Desktops/laptops, consoles, phones/tablets, all of it.
Plenty of people refuse to upgrade from their Sandy Bridges and Skylakes for Windows 11 because they still run everything fine. Plenty of people find smartphone upgrade cycles unjustifiably short because upgrades bring so little in practice.
As I mentioned earlier, the only computing segment still seeing significant leaps in performance to warrant constant and frequent upgrades is the enterprise, most obvious of which is the current "AI" fad.
The power of the last two generations of console have allowed developers to make high quality games cheaper. But they are also lazier. We aren't seeing the hyper optimized experiences that fully utilize the hardware like late generation PS2 and PS3. Consider that a PS3 has only 256 Mb of main RAM and 256 on the video card.