The industry has moved to HTML5. Learning the web client is the correct path forward.
It is available on VMware’s old download portal (requires login), but again, this is not recommended for production or security-sensitive environments . download vsphere client for windows
If you need to manage , use the VMware Host Client (ESXi’s web interface) or the vSphere HTML5 Client (via vCenter). For Windows, you should install the vSphere CLI or PowerCLI instead. The industry has moved to HTML5