Have you tried hiring developers to do the work that you want?

I just cannot understand the entitlement of demanding some open source developer must do particular unpaid work that users are demanding.

With open source, you can fork the project.

It should be okay for an open source maintainer to say “no”.

It is not open source, because it does not meet the definition of open source.

I’ve noticed that some “mobility” startups are using Linux. E.g. companies working on electric or automated vehicles.

Turn based, or at least have a pause button (in single player).

Yes, but does that still count as “modern”?

How exactly would it “get stomped”, and by whom?

BTW, there is a miniflux package in Debian testing / unstable: https://tracker.debian.org/pkg/miniflux