I’m diagnosed. If I haven’t had coffee in a few days and drink a few strong cups it mainly drives up my anxiety and wakes me up a tiny bit. Then I usually crash hard. If I’ve had it for multiple days in a row, I can barely register any difference in how I feel at all. It definitely affects my resting heart rate though, so I try to keep my intake low. Eating a snack and staying hydrated is more affective at perking me up.
Jokes aside, you can do different stage installs where you don’t have to compile the whole OS. However I feel like the quality has dropped during the past few years and it requires too much tinkering. Back when everything was on spinning rust, the performance difference was very noticeable though.