I agree… I’m watching some videos that are clearly showing the object handles switching from resize to rotate.  So the feature exists for desktop/laptop, but for some annoying reason on the iPad there is not a quick and easy key press to toggle between resize and rotation handles.  The only thing you can do on iPad is select the object and then move the mouse over to the transform field and change the number of degrees manually or use the rotate 90 degrees button.

Answer: to rotate in Figjam on IPad, ideally with pencil, drag from “just outside” the handle once object is selected, drag from “handle or inside handle” to resize. 
 

this is the way ..:: 

But I’m using the iPad as a workstation, so the iPad is essentially docked and I’m using a larger monitor, Bluetooth keyboard and mouse. This is in Figma and also Figjam.

If users don’t have a Pencil you’re telling me this basic feature isn’t available?  That should be addressed.  You can’t assume that all users are using an iPad like a portable tablet or that they have the pencil.  The iPad Air is very powerful and can be configured to use with an extended desktop monitor. 

As an option, you can put any number here

It’s not about the pencil… use your mouse as you like, just click/drag the handle as your would but “outside” of the box. Works on iPad app and figjam in chrome