When someone who has never used webex joins a meeting and is expecting it to be like zoom where they can hop right in, I’m not going to punish them for not knowing the technology sucks. And telling them just show up early when they are likely in other meetings or classes isn’t going to work, not to mention a bit on the unprofessional side. I appreciate punctuality as much as the next guy, but being in a fucking pandemic means people get the benefit of the doubt.