I've used Haskell for a decade or so, and tooling has improved immensely, with ghcup and cabal sandboxing and HLS now being quite stable. Maybe I've been lucky, but I haven't found much missing in the library ecosystem, or maybe I just have a lower threshold for using other languages when I see something is easier to do with a library from Python or whatever (typically nlp stuff). The one thing I still find annoying about Haskell is compile times. For the project itself, one can do fast compiles during development, but say you want to experiment with different GHC versions and base libraries, then you have to wait forever for your whole set of dependencies to compile (or buy some harddrives to store /nix on if you go that route). And installing some random Haskell program from source also becomes a drag due to dependency compile times (I'm always happy when I see a short dependency tree). Still, when deps are all compiled, it really is a fun language to program in.