It's sometimes easier and saner to develop a new component on something like stactblitz or a new angular project than make a change, wait 20s+ for compiler+browser to compiler and load code and view the new change. And repeat. And losing the hot-reloading with state b/c of the OOP heavy architecture in some shops, well that's not helping speed up write/reload/view change cycle at all.
And as you write larger and larger apps, with hundreds of components, it's just ridiculous how poorly the first-party tools handle that kind of code scale. Your only choice it to buy into Bazel to maintain some sense of sanity and productivity albeit some of which gets diminished with the overhead of learning, using and maintaining bazel for the project.
Complexity on top of complexity, nothing about Angular is simple.
https://github.com/angular/angular/issues/37293
I have 2 comparable applications (in size) and React build times are 10 times faster than Angular.