Yeah that view builder syntax is a perfect example of optimizing for the wrong thing. It makes for nice short examples but in real apps your compile times explode trying to untangle these crazy generics and the compiler very often just throws up its hands and tells you to figure it out. This means you just start commenting out bits of code until you find by trial and error what it doesn't like.

That this is shipping in the native UI framework for a trillion dollar tech company is astonishing.