--use-fs-snapshot slows down backup by >10x

Not yet, because the USB 3 and Thunderbolt functionality of the ports of my machine stopped working. That’s due to bad contacts. USB Type-C is flimsy. I hope to get that fixed once I find time. In the meantime, I’m relying on online backups, which run on my file server. Also with Restic, of course.

As far as I can tell, Restic for backing up the data partition plus Macrium Reflect for backing up the system partition is a good combination.

Originally, I used exFAT on the backup medium. After switching to NTFS, performance went up considerably. See my October 8 post in the thread Windows: Recommended allocation size for exFat?.