When i download a new version of unity in the unity hub, i always deselect the checkbox to dowload visual studio because i have visual studio 2019 already dowloaded, but it doesnt matter, because it always download it.
So every time I try to update unity, I have to install the visual studio and then uninstall it.
I tried dowloading again unity hub, dowloading again the visual studio i have but it doesnt matter, it always happen.
I also have Visual Studio 2019 installed, I never select VS 2019 when I install a new version of Unity but, as far as I’m concerned, I do not have your problem.