How can i fix LINE application don't notify on Xs max with IOS 16.5.1 ?

Let see LINE answer for issue.

Apple said : It is LINE problem.

LINE said : Apple notification problem.

It will end up with changing new phone method. bet on me.

Dear valued customer,

Thank you for contacting LINE Customer Care.

Please accept our apologies for the inconvenience.

Notifications in LINE use a notification system offered by Apple or Google, so we are sorry to say that we cannot investigate the details of the issue.

 We apologize for being unable to assist you further on this occasion, and ask for your understanding.

You may also be able to resolve the issue by trying the following troubleshooting tips.

Note: For assistance with your device or configuring your settings, please contact your device manufacturer or mobile service provider.

• Restart the LINE app and your smartphone.

• Delete all unnecessary apps and data, and make sure you have enough free space on your device.

• Disable battery and energy saving modes/settings.

• Turn OFF the notification settings for LINE, then turn them back ON.

• If the "Do not disturb" setting on your device is turned ON, turn it OFF.

Note: This setting name may be different depending on your device.

• Check your notification settings for LINE again by following the steps in one of the Help articles below.

LINE notification settings (Android)

General LINE notification settings (iOS)

If you are using an Android device and notifications do not arrive unless you start the LINE app, it may be because the LINE app is not running in the background on your device. Please try using the back button on your device when closing LINE.

Again, thank you for using our services, and please let us know if you need any additional assistance.