Anecdotally we are using F# more than ever before, and it works for us for a large sized organisation. Fast code, it is keeping up with the .NET features that matter for that (e.g. spans), and tbh has still been getting better over the years. In fact I find some of the new features like Span, SIMD/intrinsics somewhat synergise with existing F# features (e.g. inline). C# IMO still hasn't quite caught up but is getting there. Comparing to Go/Java/etc I can usually get faster code out of the .NET runtime as well especially in our domain which requires large scale computation. If I was to move to something else for our domain it would be C++ or Rust. F# piggy backing of the .NET platform in general, has a decent ecosystem and easy onboarding cross platform and gets a lot "for free" (e.g. CLI, GC improvements).

Community is an interesting thing, and for some people I guess it is important. For me language is just a tool having coded for quite some time and seen communities come and go; don't care about being known or showing an example per se. If the tool on the balance allows me to write faster code, with less errors quicker and can be given to generic teams (e.g. ex Python, JS devs) with some in house training its a win. For me personally I just keep building large scale interesting systems with F#; its a tool and once you get a hang of its quirks (it does have some small ones) quite a good one that hits that sweet spot IMO.

My feeling however is with AI/LLM's communities and syntax in general is in decline and less important especially for niche languages. Language matters less than the platform, ecosystem, etc. Its easier to learn a language then ever before for example, and get help from it. Any zero cost abstraction can be emulated with more code generation as well as much as I would hate reviewing it. More important is can you read the review the code easily, and does the platform offer you the things you need to deliver software to your requirements or not and can people pick it up.