This community wiki page is somewhere between 10 and 20 years out-of-date.

https://wiki.haskell.org/index.php?title=Debugging&action=hi...

In particular, it has no mention about the new actual ... debugger:

https://well-typed.github.io/haskell-debugger/

https://discourse.haskell.org/t/the-haskell-debugger-for-ghc...