You can also add a small script to your WSL under `/usr/local/bin/git`:

  GIT_WINDOWS="/mnt/c/Program Files/Git/bin/git.exe"
  GIT_LINUX="/usr/bin/git"
  
  case "$(pwd -P)" in
  /mnt/?/*)
    case "$@" in
    # Needed to fix prompt, but it breaks things like paging, colours, etc
    rev-parse*)
      # running linux git for rev-parse seems faster, even without translating paths
      exec "$GIT_LINUX" "$@"
      ;;
    *)
      exec "$GIT_WINDOWS" -c color.ui=always "$@"
      ;;
    esac
    ;;
  *)
    exec "$GIT_LINUX" "$@"
    ;;
  esac

This allows you to use `git` in your WSL shell but it'll pick whichever executable is suitable for the filesystem that the repo is in :)