So far no meaningful action has been taken that indicates he's particularly concerned. He's focused on trying to reopen schools, last I heard.
Some people have argued that the vaccinations are evidence of his success regarding Covid-19 but I don't see any part of that that wouldn't have been proceeding with or without him. As far as I can tell, the only difference between Trump and Biden's handling of covid has been "Biden knows to keep his mouth shut about specifics and predictions, because he might be wrong" which is exactly the kind of playing-both-sides I've seen from many state and city governments for the last year (talking a lot about how we need to follow the science and keep locking down to keep the spread low, but also taking no steps to enforce the rules or financially support people/businesses.)
Oh I'm sure he's concerned. But there's precious little he can do other than doing what he can to get vaccines rolled out faster and closing borders to foreigners. Most people certainly support the former and most are at worst indifferent to the latter. He can also set a "good example."
But getting into a tussle with states he thinks are opening up too much, etc. is almost certainly counterproductive at this point.
Some people have argued that the vaccinations are evidence of his success regarding Covid-19 but I don't see any part of that that wouldn't have been proceeding with or without him. As far as I can tell, the only difference between Trump and Biden's handling of covid has been "Biden knows to keep his mouth shut about specifics and predictions, because he might be wrong" which is exactly the kind of playing-both-sides I've seen from many state and city governments for the last year (talking a lot about how we need to follow the science and keep locking down to keep the spread low, but also taking no steps to enforce the rules or financially support people/businesses.)