The trick in my area is my ISP is a crown corporation that competes with the privately owned ISPs. They don’t give a crap what you do(as long as it’s not too illegal or damaging their service), the standard on their fiber is upload speeds are 1/2 the download speed and you can pay an extra $10/month for symmetrical. I put it to the test once as I was testing online backuo software. GDrive has a limit of 750 GB/day uploaded data, and I did that consistently for a couple months straight(IIRC that was pretty close to maxing my upstream at that time). Never heard a peep.
Something kind of unique about UnRaid is the JBOD plus parity array. With this you can keep most disks spun down while only the actively read/written disks need to be spun up. Combine with an SSD cache for your dockers/databases/recent data and UnRaid will put a lot less hours(heat, vibration) on your disks than any raid equivalent system that requires the whole array to be spun up for any disk activity. Performance won’t be as high as comparably sized RAID type arrays, but as bulk network storage for backups, media libraries, etc. it’s still plenty fast enough.