Hardly.
- Both Playstation 5 and Xbox Series X use x86 processors.
- MacBook market share is around 10%, so the majority of new laptops are still x86.
- The majority of cloud compute instances are also x86.
- Both Playstation 5 and Xbox Series X use x86 processors.
- MacBook market share is around 10%, so the majority of new laptops are still x86.
- The majority of cloud compute instances are also x86.
If people are actually using ARM for development, it also makes sense to use ARM for CI and production servers, since maintaining support for two architectures is just not feasible in the long run.
Recently, I've been testing ARM on CircleCI, and in my experience builds and test runs are about 20-25% faster on ARM vs x86, which to me seems like a big win.
You are forgetting ChromeOS, though it only adds ~%1