What way zoom use to keep up-to-date on user-level installation

[Tomcus]

Hi, I have a question, in my company only few users use zoom regularly and their client is not updating by itself even the "autoupdate" option is checked, so I'm looking what way it use to keep up-to-date, is it windows scheduled task or something else? Their installation is user-level so I'm not able to use our update manager.