This has been tested on both an iPhone 17 with iOS 26.1 and an iPhone 13 with iOS 18.6.2. The lockscreen widget will display out of date information until the current information is 30 minutes old and will then update to show information that is 5 minutes old. I'm unsure if this is a limitation on Apples part or an error with the application. Clicking on the widget to open the app also does not update the information like it does for other existing widgets. The badge number will also display up to date information confirming the app has access to new information and isn't able to display it on the widget.