Yes, it is possible to join a Google Meet with a phone. There are a few different ways to do this:
-If you have the Meet app installed on your phone, you can open the app and join the meeting.
-If you have a link to the meeting, you can open it in your phone's web browser and join the meeting that way.
-If you have been invited to a meeting through Google Calendar, you should be able to join the meeting directly from the Calendar event on your phone.