Disabling Next Edit Suggestions can be slightly counter-intuitive. The next time a Next Edit Suggestion appears, right-click on the button that appears to the left side of it and click on Settings to go its NES-specific settings. Look for the setting Github Copilot > Next Edit Suggestions > Enabled - this may already be unchecked even if the setting is enabled. Check the field once, then uncheck it, then close and reopen VS Code - you shouldn't see any of these particular suggestions again.