You can absolutely run it during development! In fact, many people will use an editor that automatically does this and highlights any potential errors - which means you don't need your compiler to display them (or even block compiling) as well.
And yes, type checking is relatively slow, and also strictly extra work, since it's not required to make your code runnable.
You'll often see that people do still do a more thorough production build in their CI systems, but not necessarily by using a bundler that includes type checking; rather, they just run type checking and bundling as separate tasks. That way, you do indeed get all the verification you would like without having to delay deployment.
(To make it somewhat more confusing, a project like Vite does use a fast bundler (ESBuild) during development and a more thorough one for production (Rollup), but that's independent of type checking. It's more about the latter doing more optimisations, and the former merely making the code runnable by the browser.)
