Just yesterday I heard about a friend-of-a-friend type situation where the sysadmin husband was in hospice, and the wife was struggling to figure out how to operate the NAS to recover family photos, etc.
I think consumer NAS manufacturers could add a "foolproof backup connection method," such as a USB port in USB device mode, so the NAS could be easily connected to a laptop by someone with little computer knowledge, in read-only mode.
That said, my home NAS is "the littlest server": an aging ProLiant DL380 Gen8 MicroServer. It's behind a double conversion UPS. SAS card + drives, Proxmox running virtualized FreeNAS, etc. Typical overdone geek build. I have not seen a finer NAS platform for the precocious home admin. I wish there were newer versions which kept the enterprise style "lights out management," and added m.2 and such, but I think HP Enterprise as a company is not interested in the homelab use case.