Hello @webaukcio.eu thanks for reaching out .With MultiVendorX the vendors get their own personalized dashboard from where they can add products (https://prnt.sc/mn4-KIPvwBtj) , manage orders and do many more things .
However, the admin can also add products and assign that to the vendors (https://prnt.sc/Os5E4WcvhjPN). If the admin wants, he can also restrict vendors from adding any product (https://prnt.sc/M24qmafLyKYo). But vendors can see all the products assigned to them (https://prnt.sc/mn4-KIPvwBtj).
It would be really helpful, if you can explain the flow you are looking for, so we can assist you further.

@webaukcio.eu, yes this is absolutely possible.
All you have to do is disable sold by option, this will hide the vendor’s name from the products.

Why don’t you install our free plugin from here and set up the store for the simple product : https://wordpress.org/plugins/dc-woocommerce-multi-vendor/
Just build the store as per your need, apart from auction flow.
If you need any help there, don’t hesitate to send us a mail.

You just need to go to admin dashboard >> MultiVendorX >> Settings >> General , from here you can disable the Display product seller option https://prnt.sc/OP6wA9C-Udr1

Now to hide the sold by option in shop page and single product page https://prnt.sc/SL1tQ28FRGsu & https://prnt.sc/O2PhaR8rOeU6 .
Also to remove vendor tab from single product page you can add the below code in the functions.php file of your current active theme –

//  vendor tab
add_filter( 'woocommerce_product_tabs', 'woo_remove_product_tabs', 99 );
function woo_remove_product_tabs( $tabs ) {
   unset( $tabs['vendor'] );      
   return $tabs;
}

Add the below code in the functions.php file of your current active theme :
https://multivendorx.com/docs/code-snippet/remove-vendor-name/

@webaukcio-eu Not to worry.
WordPress backend access allows vendors to add a variable, grouped, and external products https://prnt.sc/TdTKjacJxQc4.
If you still want to hide the wordpress backend menu you can choose any of the below options–
i) I would request you to get a pro subscription of our plugin https://multivendor.com/pricing/ and disallow backend access from admin dashboard>>settings>>general https://prnt.sc/5O4MHTnAgqkP
ii)You can also add the below code to the functions.php file of your active theme to restrict vendor from accessing the backend for free –

add_filter( 'mvx_vendor_dashboard_header_right_panel_nav', 'filter_mvx_vendor_dashboard_header_right_panel_nav', 10, 1 ); 
function filter_mvx_vendor_dashboard_header_right_panel_nav( $panel_nav ){
unset($panel_nav ['wp-admin']); //remove Backend Link 
return $panel_nav ; }

However with this option vendors would be able to add simple products only.
So, we suggest you go with the first option as the vendors would be able to add different types of products along with other features.

Its been while and we have not heard back from you. We hope your query is solved now. We are closing this thread. If you need help or face issue in future please open a new thread.