If you’re not doing anything too serious, consider using SQLite (LiteFS?) for blob storage as well. Dr. Hipp once revealed that Adobe found opening PDFs from SQLite was faster than accessing them via the filesystem. So, perhaps, it is okay to use for it serious storage workloads, too?
nb: Object stores are very different to typical file-based storage systems or even block-based drives: https://archive.is/AQ9EG (source).