Welcome to the Community. I can provide some clarification about running QuickBooks Online.
Yes, you can run QBO using the latest OS, Windows 11. However, there's no update yet regarding the performance when accessing accounts.
As of now, the recommended OS and process for the best QuickBooks experience is Windows 10, Intel Core i5, or a comparable processor (2015 or newer).
I suggest checking out this link from time to time for any updates about the recommended operating systems: System requirements for QuickBooks Online.
Also, I've attached article you can check out to improve the performance of your QuickBooks: Why is my QuickBooks Online slow?.
Keep us posted if you have further questions about the QuickBooks Online features or requirements. Have a great day!
Hi Alcaeus, thank you for your reply.
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