[NAME], This is actually pretty well documented in the 19.3 VMware integration guide. The option is available under Protection -> VMware Proxies. Refer this video to see how the redeployment works - [URL]
The release notes for 19.3 specify that you are now able to redeploy vProxies using the Management Web UI. I cannot for the life of me figure out how to do this. The VMware Integration Guide says to look at the Online Help in the Web UI for instructions, but there are only instructions on how to add a new vProxy.  Can anyone help me out? I see no options in the Web UI for redeploy, update, or upgrade when looking at my vProxies.
Redeploying vproxy from 19.3 web UI