High risk for students?
Please feel free to use Webex in your class if your students have no issues connecting and managing the install. But, you might say, should those struggling students need to learn how to manage their tech sooner or later? Sure, but if real-time communication with your students is on the line, you want the simplest solution to assure you can reach the class... then build from there. Google Meet using your student's G Suite for Education account is pleasantly easy.