Where is the “offsite” that you keep a second copy?
Those who keep another copy of their hard drive (or whatever other backup source) offsite, where is that? Your mommas house? A storage locker facility? At work?
Onedrive for my documents but that is only up to 1 TB, and more for convenience as i have them available everywhere on all devices.
Pictures in the locker at work. = 8TB drive
HDDs in my shed for Movies and Series
Once my shed is rebuild (bricks and mortar), even the Pictures will go there.
The point of offsite is: How far do you want to go? If mayor wildfires, floodings, hurricanes and tornadoes aren't a thing. Or if you build houses that are not made of toothpicks where you live. 25m away, in a separate building is more than sufficient imo.
Pushing 7TB here. Everything I've shot over the last 40 years, both on digital (RAW) and digitized film, plus the scanned slides of about 4 other people and my extensive historic slide/negative collection. I don't ever trash anything, except for the rare instance that my shutter release gets hit accidentally and I get a burst of 15 out-of-focus boot pictures.