Something definitely has bloated the size of shipping projects between 4.22.3 and 4.23.0 preview 7. With the same data and project settings, my build size has gone up 240MB (2.12GB vs 2.36GB). This is not a terribly big deal for a PC project like mine, it may even be necessary for some reason (some new cached data?). But I can see how this would be detrimental for a mobile project.