-I’d rather keep the choice of resolution up to the user as there can be a lot of special cases. Also setting the texture resolution is just a 1 minute process you only have to do once per skeletal mesh.
-Are you asking for the Mannequin Vertex Anim Profile that was used to bake the animation of the example content project? Or are you asking if you need to create a Profile and keep it in the example project in order for it to work? Since the binaries are included you just have to grab the “VertexAnimToolset” folder under the “VertexAnimToolset_4-22” folder, and either drop it inside a “Plugins” folder of whatever project you want to use the plugin with, or inside the “…\UE_4.22\Engine\Plugins\Marketplace” folder to have it enabled on all of your engine projects.
Cheers.