I would like to delay the latest major update. On May 20, I set my delay for 30 days, until June 19. After the 19th, I assume it will start updating. How can I avoid this?
You can pause quality updates (monthly security fixes, drivers, etc.) for up to 35 days. Then you need to update before pausing again. But feature updates like 2004 (the May Update) aren't installed automatically any longer as long as the version you're on is still currently supported. A feature update that's available for your PC will appear in a separate area and you'll need to manually initiate the install. Check out this WC article from a year ago for more info.