I just spent the afternoon (since lunch) backing up an user's iPhone 6 to upgrade him to iPhone 8. Took 30 minutes to backup and restore on the new phone using iTunes. Took almost an extra hour to figure out all the FUCKING accounts, two-tier authentications and other "security features" Apple are building into their pieces of shit these days.
He had linked his apple ID to his wife's phone so each time we tried to link any account: Salesforce, Exchange, Apple ID, Hotmail and so on it kept on texting his wife.
Did you know that now, when you restore a phone it won't automatically install all the apps that were on the backup? No. They show up with their stupid little cloud icon near the name and when you go to start one up it will download it BUT not before you TWO TIER AUTHENTICATE!