Hi, I could not download it from the WhatsApp web page but I got it from Microsoft. https://www.microsoft.com/en-gb/p/whatsapp-desktop/9nksqgp7f2nh?rtc=1&activetab=pivot:overviewtab I find communicating much easier on a larger PC screen than a smaller phone screen. It is also far easier to attach photos.
I have to use that for work, to support companies in other countries. It is an actual web page it will work direct in a web page, the downloadable version will be what is called an electron app, basically a website packaged into an exe that contains a copy of the chrome browser. You end up with a huge bloated app download that uses huge amounts of RAM, Microsoft ruined Skype by packaging it this way, they also packaged Microsoft Teams this way equally horrible although more functional than Skype these days.