Some comments on vit regimens: if you take a large dose on any vitamin, especially water-soluble like vit C, other vitamins will be removed by kidney together with it, so at the minimum take some vit Bs with it.
1g of vit C/hour is a horse size dose anyway, but to each their own. For myself, 0.5g/once a day when i feel under weather is enough.
Definitely, it was a one day thing to knock out COVID so all was well. I was under the supervision of my friend who lives on Vitamin C research. She gave me her super fancy stuff that's supposed to absorb better or whichever. Either way, I went from my lungs feeling like when I was in high school after running a 100 meter sprint (after the slightest amount of activity) to being completely fine.
I think there is something to the Vitamin D thing though. They are finding people with higher melanin are dying at higher rates than those with lower melanin levels. Lower melanin level folks tend to process Vitamin D easier. Though, anecdotally my wife is melanin enhanced and she was just fine...just a little tired those days. Though she's more apt to walk around outside than me.