After a few weeks of running my new NAS box (a Lenovo Tiny m720q with a USB attached terramaster D4-320 that houses 4 spinning drives, 2x4TB in RAID1 and 2x8TB in RAID1) and a lot of people warning me that RAID and USB connected drives is a recipe for disaster, I can safely say that it JustWorks™ for me. Sure, it isn't NVME style super fast, but it happily deals with backups and file copy over the gigabit network I have at home with full saturation of said network connection. Works for me :)
@jwildeboer I had a similar setup where I accidentally put a redis volume on an nfs and man did that make my whole system chug. I now know better than to let kubernetes choose it's volumes.