app downloads, but the installer brings up a sign-in to Zoom Cloud Meetings

[peterbar]

I have used the Zoom desktop app on my 64-bit laptop for ages. Yesterday it would not work, complaining that I needed to download a current version.

When I download it, I get ZoomInstallerFull in my downloads. When I try to run it, I get a window to sign in to Zoom Cloud Meetings. When I put in my account and password, it complains, "Your app version needs to be 5.14.5 or higher to sign in. Please contact your IT team to update your app.

I'm not trying to sign in to Zoom Cloud Meetings, I'm trying to update my app. What do I need to do to update it?