Availability of the vSphere Clients for Linux systems ...
kb.vmware.com › s › articleJun 19, 2020 · In vCenter Server 5.x, the vSphere Web Client (Flex/Flash) can be used from Linux platforms as well. The vSphere Web Client includes a subset of the functions available in the vSphere Client. For more information, see the vSphere Client and vSphere Web Client section of the vSphere 5.0 Virtual Machine Administration Guide.
Accessing the vSphere Web Client from a Linux desktop?
williamlam.com › 2015 › 02Feb 25, 2015 · "Because Linux platforms are no longer supported by Adobe Flash, vSphere Web Client is not supported on the Linux OS. Third party browsers that add support for Adobe Flash on the Linux desktop OS might continue to function." (from https://www.vmware.com/support/vsphere5/doc/vsphere-vcenter-server-55u2b-release-notes.html)