Magento2 Marketplace 3rd Party Module Support – After the approval or auto approval of the product all the product added by vendor / seller , will be the part of global catalog so any module or plugin by the third party will work as a normal web shop of Magento2 but they will not work / manage from the vendor panel of the marketplace , that means vendor will not be able to manage those module features

Example – If you will use any other third party auction plugin then admin will be able to add auction but not the seller / vendor, in that case, you will have to use our Magento2 Seller Auction Marketplace Add-on