Long lasting fatigue may be a long COVID symptom.
Getting other respiratory viruses is not unusual in a normal year. However, the recent years of social distancing, masking, etc. to avoid COVID-19 meant that most people were getting a lot fewer respiratory virus infections generally, so (a) people may be seeing the lack of such as the new normal (which it is not once the COVID-19 avoidance went away), and (b) immune reactions to respiratory viruses that would ordinarily be “boosted” through frequent exposure have faded over a few years of non-exposure, perhaps allowing those viruses to cause more noticeable sickness this time.