Need to restore Zoom login button at top of PC screen

Fellow Zoom users,

I have three Zoom accounts that I use and I used to move between them by clicking a Zoom button at the top right of my PC monitor screen (just next to the Minimize and Restore icons).  About 2 days ago I did a Chrome Default reset for another issue and that Zoom button has disappeared.  I need to get it back--how do I do that??

Thanks,

Phil