FaceTime web requirements
When you receive a link to a FaceTime call, you join the call from your browser (no login is necessary) unless you’re using macOS 12 or later, where you join using the FaceTime app. An Android or Windows device must meet the following requirements:
Have the latest version of either Google Chrome or Microsoft Edge
Be connected to the internet
Have a built-in or connected microphone; for FaceTime video calls, you also need a built-in or connected camera (H.264 video encoding support required)