For non-reimbursable expenses, the payee field will list "Credit Card Misc." in QuickBooks Online, if the merchant name on the expense in Expensify is not an exact match to a vendor in QBO.
When an exact match is not available, 'Credit Card Misc.' is used to prevent multiple variations of the same vendor (e.g. Starbucks and Starbucks #1234, as is often seen in credit card statements) being created in QBO.
To have a different vendor listed, you can change the merchant name in Expensify to be a match to the appropriate vendor entry in QBO. For repeated expenses, best practice is to use Expense Rules, which will automatically update the merchant name without having to do it manually each time.