magento2 – Extension point for the product with website identifiers in case the administrator does not define the website

That's my scenario
I've hidden the website_ids field in the product form (magento show it)
So, how can I use the plugin to set website identifiers for the product when it creates. Is there a point of entry to do it

My goal is if website identifiers are not available when publishing data, the product's default website IDs

Added modifier to edit the form

public function modifyMeta ($ meta array)

$ this -> _ meta = unset ($ meta['websites'])

returns $ this -> _ meta;