Hi, @Hawthorne-IS and @AndieAST7! I understand your frustration with the window size resetting after QBO app updates.
Just to clarify, the QuickBooks Online "desktop app" is designed for quick access to the web-based QBO, acting like a shortcut to the website. So, while it feels like a regular app, it's still displaying web content.
Because of this, your computer's operating system usually manages the window size. Restarting the app might help. You can also uninstall and re-install it, or contact us for further assistance.