
Unless someone reboots it manually, installation only happens at the automatic nightly reboot.
MICROSOFT TEAMS UPDATE INSTALL
Teams Rooms download an update and wait for the next reboot to install it. Microsoft Teams Rooms functions "out-of-box" with a hands-off approach.

Even if the update is released to the Semi-Annual Channel (or Targeted if you have systems set to that channel for testing) or manually pushed, Microsoft Teams Rooms won't allow the untested update to install. Unlike Quality and Non-Deferrable updates, Windows 10 "Feature Updates" (major OS releases) will only be installed after Microsoft tests and validates a given updates functionality with Microsoft Teams Rooms. Each Update can be individually deployed and tested at will, rather than relying on only a delay.

Windows Updates for Business (GPO or Intune)
MICROSOFT TEAMS UPDATE DRIVERS
Quality Updates and drivers automatically download and install day-one.Non-deferrable Updates automatically install day-one of release.By default, updates are downloaded directly from Windows Updates automatically and installed during off-hours.

Windows Updates can be managed as discussed in the following sections: Hands-off approach Microsoft Teams Rooms runs on Windows 10 Enterprise IoT or Windows 10 Enterprise (VL) and receives the same Windows Updates and OS builds as a standard desktop computer.
