Mibo is foremost a tool to socialize and to have multiple conversations going on in parallel. As such, recording a whole meeting is hard to do. Mibo does not have built-in recording tools for this reason.
If you want to record a specific person’s viewpoint (i.e., record a talk or speech, as seen from the audience), you can use a screen recorder app to do so.
A good recording includes a recording of your screen, plus, at the same time, both your system audio and your own microphone.
During recording, it may be useful to disable notifications on your laptop and maximize your Mibo window, so that you record only the meeting, not your own windows or notifications.