Oh I know, I had the same thoughts
Object storage does really bad as a filesystem and it may very seriously be cheaper for you to have a 5TB storage box over 2TB of object storage
S3 has no list operation, so any time the computer wants to “list” a directory in object storage that is expensive
I have a similar use case and whilst I’m not quite there yet I’m intending to go with a storage box
You can write shares to CIDR blocks e.g. 100.0.0.0/8