I kept reading about people having trouble during the restore process.
It is Duplicati, and IMHO restores work best if they aren’t restores-in-place. As in, dump the restores in a central location then drag-and-drop the data into place. Most of the issues I have heard of involve restoring data and settings back to where it originally was backed up from, and restoring directly back to those places - other than fully user-controlled directories, such as Documents or Photos - seems to be problematic.
Other than that, I have been using it for nearly a decade and have done a number of restores - after total drive deaths, so not just accidentally deleted files - to great success.
The downside is that tweaking backups from within the hidden C:\Users\[username]\AppData\
directory involves many days of whack-a-mole to exclude untouchable normally-in-use files so you don’t get scads of errors in the backup process. Plus, there are a fair number of entries in there that don’t really need backing up. But once you get that to settle down, it’s largely smooth it’s-set-so-forget-it sailing.
Aside from the Rotary Un-Phone, there are pretty much no dumb phones anymore. Those that market themselves as dumb are just reskinned full-fat platforms.
Even almost all flip phones are smart phones with a dumb skin, as they run either Android or KaiOS.
The main reason why I would switch is for device security - a true dumb phone OS that operates purely out of the ROM and has no ability to install anything that could survive a reboot.
And for something that primitive, it would be a flip phone on par with the Motorola StarTac. Simple black-on-green screen, low-res display, with a calendar and address book as the only non-phone, non-SMS functionality.