Hi @Anonymous
I hope you're doing well. Just to answer your questions directly, managed libraries still don't work in a team environment although we are very close to having that done. They are currently(big emphasis here) the only way to add 3D models to the part library.
The managed library is the glue that links the EAGLE design to Fusion360, it will also enable true library collaboration once the team environment is setup. Those are going to be the main reasons to use a managed library over a plain library.
Please let me know if there's anything else I can do for you.
Best Regards,
Jorge Garcia
Product Support Specialist for Fusion 360 and EAGLE
Kudos are much appreciated if the information I have shared is helpful to you and/or others.
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