Board Thread:New Features/@comment-79.72.181.15-20201015191920/@comment-9605025-20201015194522

Please see this thread where someone else asked a similar question about Windows XP.

To summarize, Windows 2000, Windows XP, Windows Vista, Windows 7, etc. are operating systems. They have no direct impact on whether or not you can use a particular website. The website interacts with your web browser and your web browser interacts with your operating system. So if you find a web browser that works on your operating system and with the website, then you can continue to use your current operating system to access the website.

However, as Paramount1106 said, Windows Vista is rather old at this point. After it came Windows 7 and even that isn't supported anymore (except enterprise licenses which will become unsupported in about 9 months). As such, the chances of finding a browser that works with your operating system and supports the website is extremely unlikely.