I've never done anything "serious" with haskell, just small personal projects. Mostly this is because I've found the ecosystem to be a pain - when I was trying stack stack was the thing to use but from what I can tell ghcup+cabal now work better.
If you push through that you end up with code written in a language people have used for formal proof (seL4 model is Haskell) and deployment wise a binary that +/- libraries you depend on ought to be reasonably portable.
I'm very surprised anyone would want to go the other way. Same ecosystem pain, plus you need to start shipping interpreters or containers, plus the language just doesn't really compare.
I know several people who are serious Haskell users despite, like you, using it just for small personal projects. All of them are quite some way down the autism spectrum and will casually toss around Haskell concepts that require about 30 minutes of googling by anyone else present in the conversation to try to understand. Get two or more of them talking to each other and everyone else present is more or less excluded from the conversation... and this is something they're doing just for fun, not because they're paid to do it.
It could just be a coincidence of statistics, but it does cover every Haskell user I know (needless to say, these people are much smarter than I am).