I use FCM for message push in Java backend. When I set the image, the image cannot be fixed on the right. If I click to view the details of the notification, the image will move to the bottom and enlarge. I want to implement a chat push similar to Lark, which can carry an avatar and the position of the avatar is always fixed. If the APP uses a custom layout, this problem can be solved, but when the APP is not running, the custom layout will not take effect. Is there any way to solve this problem?

I tried to change the size of the image, but it didn't work. I hope to achieve Lark's message push notification effect.