That's assuming quite a few things though about the user's browser. Like cache not being cleared on shutdown. And on the project side, that there are not so many changes, that need to be received by the user agent now, instead of whenever the cache expires. That updates can be applied later on the user side. Of course when updates only happen every few weeks, then it might work... but only if that cache is not deleted, which is a big if.
It is NOT a big if, because by default, caches are not deleted on shutdown. Plus, in a corporate environment, the windows installations are centrally managed and won't be configure to do so. But coming back to the original argument: If there is no caching, your SSR is never going to be fast too.
