I would agree that there should not be inflation level pay rises every year, but I think one of the big reasons for the strikes is a lack of pay rises to keep up with inflation for an extended period of time. It was always going downhill, it's just accelerated to a point whereby it's becoming unworkable for some. Of course there is another answer but the government prefer to tax high as well so that particular lever won't be used (even if temporarily to match the inflation).
Beyond that, every non sterling priced item/good/service will go up regardless of COVID, wars etc the question is by how much?