Thanks for laying out the details of your concern, @freelance_001-fr.
I've got some details you need about this integration process.
Please know that QuickBooks Online depends on the connector that you use when integrating with PayPal. With that said, you can reach out and check with your provider or PayPal connector to review this integration sync issue.
Moreover, I also got you this article that can help guide organising your bank transactions: Download, Match, and Categorise your Bank Transactions in QuickBooks Online.
The Community space is still open for you. So, if you have questions about any transactions or tasks, let us know, and we'll be here to help. Take care always.