You can turn off the notifications by clicking the X or No, thanks button, @GeorgeTheCat. Let me give you a guide for this.
When working in QuickBooks Online (QBO), helpful tips are displayed as a guide as you navigate the platform. To dismiss these tips, click "X" or select "No, thanks" each time they appear. It's worth noting that if you are using a new browser to access your QBO account, the tips are part of the introductory experience. However, if cookies are enabled, the tips should not reappear once dismissed.
Furthermore, if you need assistance managing your QBO settings, refer to the following link for guidance: Get started and adjust settings.
If you need more assistance handling your business in QBO, get back on this tread. We're here to help you.