We've been doing this on the Renovate project for years, and it's been hugely useful - we get a lot of reports that users feel to be a bug, but are often misunderstanding or expectations about behaviour that isn't necessarily true.

There are absolutely bugs that get reported - either in functionality or documentation - but by requiring a level of triage in Discussions before promoting them up to Issues is a great way to keep things more actionable for folks wanting to come in and contribute fixes that the maintainers do agree are needing a fix