Restore data from android backup to iphone

Move from Android to iPhone, iPad or iPod touch – Apple Support

You would have to follow these steps, it doesn't appear you can transfer using an Android backup. You need to have access to your Android device and new iPhone at the same time.

Maybe. If your photos are on Google Drive just install the Google Drive app or Google Photos app from the app store. And if your contacts are in Google just add your gmail account to your iPhone by going to Settings/Passwords & Accounts and the contacts will come along with it.

There is. There’s an app that transfers content from an Android to an iPhone. But the Android phone has to be working. The backups are not compatible, and, as they are encrypted it would be a security issue if an Apple device could decrypt the Android backup.

Nope.