Will a USB headset work on both Windows and Mac?

Yes. Generally, a wired USB device is plug-and-play on Windows and macOS, particularly if it's a core audio for Teams, Zoom, and browser calls. The main snag is settings: each system has separate input and output selections, and apps can override them. Set the headset as the default in the OS, then confirm it inside your meeting app. If you need a single model for mixed fleets, choose a USB PC headset with standard USB audio and test it on both platforms.