Moore's law did stop being true right around ~2006. And if you look at overall CPU and memory performance rather than transistor density the story is worse. You haven't been able to count on the computer being twice as fast very soon in a long time.

Sort of. Moore's law has meant a lot of things that were all tied together with transistor scaling back when voltage didn't need to be scaled down with each new node to fight leakage. But now that leakage is a major concern a lot of what would have been the old gains of shrinking a transistor go away. There are gains but they're a lot smaller than they used to be. But the oldest sense of Moore's law of doubling the transistors you can economically fit on a piece of silicon is very much with us. The doubling period has gone back to the original 2 years rather than the 18 months we were able to achieve for a while but it's still happening.

What's nice (at least I like it) is that once performance slowed down, so did software requirements. Developers try a bit harder to optimize their code.

But then there are electron desktop apps and react SPAs that do little more than CRUD.

Not nearly hard enough.

Moore's law as far as serial performance ended years ago. This means exponential growth has effectively ended for most tasks because of Amhdahl's law.