>but a significant percent of people seem to be experiencing it with the Omicron variant How do we know if this is true? Omicron was only identified two months

>but a significant percent of people seem to be experiencing it with the Omicron variant How do we know if this is true? Omicron was only identified two months ago, the bulk the cases have been in the last 30 days. Not enough time has passed to qualify for long covid, so there is very little to even measure at this point. If you were sick two weeks ago and still feel bad, that's not unusual with a respiratory virus or flu.