wondering about the possibility of sharing templates/modules across a multisite network
not sure if possible now - seems like wouldn’t be too far of a stretch - however I do see some complications for sharing ‘global’ mods and those should not be shareable
Re Global Templates, you can set a capability prerequisite before users are able to edit it. This can be changed under Settings > Page Builder > Editing > Global Templates Editing Capability.
Hope this helps and let us know if we can assist further!