I started using Metroretro a few months ago and it's really nice, except for the ability to export retro items I think it covers everything you listed. Also it's free and it comes with some useful templates. Source: about 3 years ago

To improve the developer experience, I needed to understand the real problems the engineers were facing, so I scheduled a brainstorming meeting. In this meeting, I explained my project and shared a Metro Retro board to write down all issues our application had at that time, what was the bad DX we had, and doubts related to this application (e.g. How do we handle data fetching?; how do we handle error handling?;... - Source: dev.to / about 3 years ago

I'm obviously not going to comment on anything internal, and I'm obviously speaking for myself and not the company, but it's worth bearing in mind that this migration was not from "on-prem" in the traditional sense. LinkedIn has its own internal cloud, complete with all the abstractions you'd expect from a public cloud provider, except developed contemporaneously with all the _rest_ of the "clouds". It was... - Source: Hacker News / 5 months ago