Complaining about the lack of a feature in a FOSS project that you haven't contributed to is kind of a dick move, though, and it's extremely discouraging to developers. If they violate community standards or put users at risk (breaking semver, insecure elements, malware, etc.) then you have the right to complain, but otherwise you really ought to remain civil and positive.

Politely requesting features is fine, but complaining about a lack of features in software that you don't contribute to with effort or money is extremely rude and pretty much a slap to the face for the developers who work on the project.