If you're not running A/B tests, doing gradual rollouts, don't have a metrics platform, and haven't had to go beyond simple on/off status, probably not.

I have a bias but I would still suggest using feature flags even for on/off functions. Example of how I do it:

https://x.com/ctushr/status/1949215574980272177

I can see the others in the build/buy debate, but how's metric platform connected to this?