BTW, I'm curious what points in the Mercola article you have a problem with. I think he's spot on about his observations about "long-haulers", and how their symptoms are similar to and overlap with those of people who have ME/CFS.
Speaking for myself I object to it structurally.
I object to their use of a "fact checked!" icon which, when clicks, explains that it was fact checked by.... themselves.
I object to the fact that it is a sales pitch masquerading as a health article. It tries to make a case about COVID-19 long haulers and then gets into issues of gut health and specific supplements, which Mercola sells.
This is not unusual; it's the main function of that site. There is plenty of information there which is not falsifiable, but it's there to serve the purpose of selling not-FDA-approved supplements to desperate people.
I get that ME/CFS sufferers get the short end of the stick in a lot of the same ways that tinnitus sufferers do, but Mercola isn't an ally, he's just someone who has, again, gotten rich selling supplements to sick people without an evidentiary basis. I know he's had his medical license suspended at least once for pushing what the state health board called "dangerous misinformation". He's amassed an empire worth millions doing this, and has pumped a lot of that back into wingnut disinformation campaigns.
The guy is like a Midas of BS; everything he touches becomes suspect. Even if the starting point to something seemed reasonable, once you realize you've followed a link to Mercola.com you know you're down the bad rabbit hole.
It's not like there isn't anything being written about this in more respectable places.
https://www.cdc.gov/me-cfs/index.html
CDC is working with partners and stakeholders to better understand the long-term effects of coronavirus disease 2019 (COVID-19) and how it affects people with ME/CFS. Currently, there are limited data and information about the long-term effects of COVID-19. A
recent MMWR report found that COVID-19 can result in prolonged illness, even among adults without underlying chronic medical conditions. Studies are planned to identify whether some people with delayed recovery develop an ME/CFS-like illness.
It looks to me like this is a real and interesting thing and I look forward to see where the actual research takes us, but for now we don't know what we don't know, and what we DO know is that Mercola is a career grifter.