The latest report from the Well-Typed GHC team is now published:
https://well-typed.com/blog/2023/02/ghc-2022-12-2023-01/
We’re thinking about how to revamp our reporting to make it more useful, so if you have opinions about what you’d like to see, please share them!
Also check out this recent post about some new features in GHC 9.6 to speed up GHCi and Template Haskell and unlock new analysis possibilities:
https://well-typed.com/blog/2023/02/interface-files-with-core/