Even with shortages in 2020/2021, i really didn't actually notice it. I don't have a car, so gas didn't impact me. I just noticed prices going up - but even if something was out of stock, a few days later it was in all the stores again.
To be honest, i am not that worried. i want to take preventive actions and try to be smart about it without it hurting my wallet, but i don't want to be paranoid about it either.
i will keep adding a few things here and there when i do groceries, stuff that lasts a while, and i have enough of things like pasta and rice to last me - and i have flower for bread. What i still want through is safe drinking water that's bigger than a few litters downstairs in cool storage - knowing it won't leak, nor go bad after a year (yes, some do have pretty short expiration dates, something to keep an eye on).
i have some lights i can turn on in case of power cuts, and i have reflective stuff i can put in front of windows that's really tiny but unwraps and covers a large area. so i can keep heat in as well. but spring, summer, fall is ahead of us and i am not too worried.