Hello @fefemf10!
Welcome to the Zoom Community!
You're running into this issue because GBox is only partially simulating Google services. When you try to sign in with Google, Zoom opens a browser window where you can log in—but once that’s done, it tries to redirect you back to the Zoom app. That handoff doesn’t work properly on Huawei devices because the system can’t recognize that it should reopen Zoom, and GBox can’t fully handle the Google login token either.
You can try this workaround: If you originally signed up for Zoom using your Google account, you can set a password for that same account and sign in with your email instead. Just go to zoom.us/forgot_password, enter your Google email, and Zoom will let you create a new password. Then, open the Zoom app on your Huawei device and log in using your Gmail address and the new password.