[aeim]

no

not all circumstances of all cases – and to be clear, covid is brutal, so is burnout. remember though, they aren't mutually exclusive

i've heard some speak of long-covid symptoms as if burnout, without other respiratory concerns. and given numbers of sufferers of both, there must be many who have experienced burnout before covid, so already make a distinction

where symptoms overlap, and circumstances align, the simplest explanation for those overlapping symptoms, might be the aligned circumstances; and anything we can do to simplify the problem space is worth exploring, in parallel, of course