What should the process be for installing multiple Sims 2 packs at once?

I found a site that explained which order to install the packs in but now I’m trying to figure out if I need to run the game after each install or if I can install each pack before running the game for the first time. The site I found also seemed to indicate that there’s no need to patch after each install because the subsequent packs will patch up the ones that came before it. I should only need to patch after installing the final pack. Can someone please verify/advise? Thank you! :)