flyctl logs is the closest to a no-touch solution. Try flyctl logs -r <region-name> or flyctl logs -i <instance-id> to see if you see all logs at least from that region / vm (docs)?
Yeah, me too. I don’t have logging setup on Fly at all (despite using it for various purposes for 20+ months at this point). That said, if logs are critical to your app, then setup fly-log-shipper (I haven’t done so myself, but the GitHub readme seems like a decent enough starting point).
Fly isn’t exactly a no-code solution, but they do aim to be zero-dev-ops (which they aren’t, yet).