Whatsapp backups

Hello,
I have a question.
One year ago my old Android phone stopped working properly and ultimately it didn't boot at all. I bought a new iPhone and I wasn't able to transfer the backups because of the G Drive/iCloud differences. Today a friend of mine bought an app which transfers backups from Androids to iPhones and I was wondering if restoring my old backup on another Android I own would have any consequences on the chats I have on my new iPhone. Thank you in advance.