Correct me if I'm wrong, but VAT is only applied to goods sold to consumers, not to companies. If I'm a VAT registered company (like Facebook) and I buy a VAT-a

Correct me if I'm wrong, but VAT is only applied to goods sold to consumers, not to companies. If I'm a VAT registered company (like Facebook) and I buy a VAT-able item like a computer (from MSFT), I don't pay VAT. So similarly, if I'm a computer manufacturer (MSFT) and want to buy VAT-able advertising (from Facebook) then I don't actually pay VAT. So in what way would this lead to tech giants that primarily sell B2B being taxed?