The annoying pop-up telling me to migrate to QB online...

I appreciate you for posting here, @ECasteel.

I understand how you wanted to get rid of the pop-ups when accessing your QuickBooks Desktop (QBDT). 

We want to comprehend your preferences for the application. However, there’s no way we can turn it down. In the meantime, I recommend you stick with the manual option of closing the window. Then, let’s extend this concern to our product development team.

Having that said, I encourage you to send Feedback directly to them. This will enable us to better understand how to meet the needs of your business. Depending on how many requests they get, they could also add this functionality to later editions. You can accomplish this by following the instructions listed below:

1. At the top, select the Help menu.
2. Choose to Send Feedback Online then click Product Suggestion.
3. Type in your feedback or feature request.
4. Click the Send Feedback button.

Additionally, follow the progress of your feature request in our Feedback forum, as we frequently incorporate your suggestions when updating our products. The more requests we receive for it, the more likely it is that future improvements will include this.

If you have any further queries, let me know in the comments section below. I'll be here immediately to assist you.