To be honest my impression is he's super unhappy about being in the hospital. Reports claim he's been very critical of those speaking on his behalf to the media (which seems like him). It punctures his macho image; he was never one to wear masks or get temperature checks, he made the people
around him do that. Now if the rumors that the video he tweeted of himself was edited to remove his coughs is true, that's more evidence for that theory. As is the fact that the signing he was doing in a video (to show he was well enough to be doing "work") was on a blank piece of paper.
That said I see where you're coming from with it. Honestly if you were to take everything they've been saying at face value, you would be forced to conclude that they are committing medical malpractice via the administration of dexamethasone since it's not suggested for cases lasting less than a week (and this was revealed on Friday, mind!), much less moderate cases in people about to be released. The most coherent explanation would be that it is all entirely a lie. But at this point it would require too many other assumptions to be true to be likely.
What his health
actually is, though; no idea. But I think it's not unlikely their attempt to project normalcy and strength will nearly kill him. It's normal to start feeling "better" for a day or two, right around day 8, 9, 10. Happened to Boris. For people with very serious cases, it's extremely common to very quickly go from "feeling like I'm recovering" to being on a ventilator around the 10 day mark. But assuming he showed symptoms on Wednesday (as implied by his doctors yesterday), that would be something like this coming friday...
Er, semi unrelated:
New York's Mayor will ask the state to shutdown 9 neighborhoods across Queens and Brooklyn on Wednesday, as cases there mount and positivity rate has exceeded 3% over the last seven days. This is linked to low compliance with restrictions, as well as weddings and gathering associated with ultra-orthodox jews during the high holy days (possibly related: Israel is also undergoing a second lockdown). More limited restrictions will be put on 11 other neighborhoods also experiencing higher positivity rates. 20 zipcodes (of the city's 146 total) will be affected.