Zoom can be used via a Computer, a Tablet or a mobile phone.
If being used on a computer, it is best if it has a camera and a microphone. (Most laptops have these)
If you are simply joining a meeting, then there is no need to register. Just use the Meeting ID and Password provided.
Zoom can be accessed via a Browser on any of these devices, but may ask you to download the ZOOM App for your device (It is Safe, and simply), to do so).
There are many excellent password manager services and sites available. You should always check the reviews of any product you are considering.
Normally I would steer away from "free" services for this type of thing, but when the FREE version comes as a cut down options version of a well renounced product, then this is acceptable.
The following is not based inb extensive evaluation but as a result of research for a free but useable service for Freeway.
If you go to SETTINGS / DISPLAY in the top menu within Proclaim, you will see that we have 4 "Virtual Screens", each of which has an aspect ration (e.e. 16:9 or 4:3 assigned.