Yes, but add a “Shared Ceremony” Custom Type to the Events list, not just “Ceremony”.
Use it in addition to the regularly used Marriage. (So that reports… and other features… still recognize a Vital Record.)
You can summarize what kind of shared ceremony (e.g., “Double wedding for twin sibling grooms and best friend brides”) in the Description.
Try to avoid adding Custom Types that are “single‐use”. A “Shared Ceremony” could be re‐used for a funeral where multiple family members were in a fatal accident or mother/child died during birthing. Or where multiple birth children were baptized.
Try to choose a label for your custom type that will pique interest when in summary reports (or quick view reports) where the Event’s Type and Date may be listed without the Description. (You are not stuck with ill-considered labels or redundancies. Custom Types can be renamed or merged with the Types Cleanup addon tool.)