what does this question mean? Does it mean other backends node.js, rust (etc..) can send notifications directly to apple device only java backend cannot send?
I think this question should be avoided totally or we can ask "Can backend api's directly send notifications to the device?" The answer would be NO, not because APNS only can do it. Because Backend has only the token, and has no knowledge of where the device is actually, But Apple does know. What do you think?