Mail: personal domain with GSuite backed up by IMAP every day
Contacts: backup on multiple devices
Drive: full data on at least one hard drive at all times
Photos: use via Google drive instead of Google photos directly. That allows you to backup like any other data.
All of this must then be backed up off of the hard disk. Our lives are all digital these days. Memories, financial documents, important addresses and phone numbers - everything is digital. Treat it like you'd treat anything valuable.
Also, don't assume something catastrophic. Something as simple as a stolen credit card that you forgot to update in one service is enough to lock you out. Or a bug.
I think you misunderstood something. You can export all your photos via Takeout... or flip a switch that makes them appear in your Drive to use more convenient sync tools.
Contacts: backup on multiple devices
Drive: full data on at least one hard drive at all times
Photos: use via Google drive instead of Google photos directly. That allows you to backup like any other data.
All of this must then be backed up off of the hard disk. Our lives are all digital these days. Memories, financial documents, important addresses and phone numbers - everything is digital. Treat it like you'd treat anything valuable.
Also, don't assume something catastrophic. Something as simple as a stolen credit card that you forgot to update in one service is enough to lock you out. Or a bug.