I appreciate your diligence in seeking clarity on this matter, FPCNS.

The preference for browsing in Incognito mode when using QuickBooks Online (QBO) has been a common recommendation because it can often provide a smoother and faster experience by avoiding issues related to browser cache and cookies.

However, the performance can vary based on individual system setups and specific usage scenarios. Both Incognito and regular browsing modes have their pros and cons, and the preference can depend on personal or specific business needs.

If you are looking for speed and a clean browsing session without any pre-existing cache or cookies potentially interfering, Incognito mode is generally preferred.

Please let me know if there is anything else I can assist you with, FPCNS. I'm here to ensure you have the best possible experience with QBO!