Well I own a dongle and the rest of my colleges working on the workstation don't
If you share a project that use studio plugin to colleges they see a watermark on that clip and no more. If you use not supported codec (h264/5 at 10 bit) you not allowed to use also if you use free on your machine. I not see a big problem in this kind of sharing, for many reasons I share and moved prg between studio and free without big troubles.