Google Limited performance due to missing identifiers [gtin, mpn, brand], Magento 2.4

I need help with Google Merchant centre and Magento 2.4 to set up the feed correctly. I bought a module and installed but google also crawl the website and generate data without [gtin, mpn, brand] so I need help probably the problem with robot.txt but I don't want to mess it up and I need someone who has experience and can fix the problems. You will need to connect to my computer to fix it, if don't agree please do not bid