Initially I was just following recommendations blindly - I've never run Loki off-cloud before so my typical approach to learning a system would be to start with defaults & tweak/add/remove components as I learn it. Grafana's docs use object storage everywhere, so it's a lot easier with you're aligned, you can rely more heavily on config parity.

While I try to avoid complexity, idiomatic approaches have their advantages; it's always a trade-off.

That said my first instinct when I saw minio's status was to use filestorage but the rustfs setup has been pretty painless sofar. I might still remove it, we'll see.