It's excellent for typing in 'wsl'. More seriously though the new Windows Terminal isn't what provides autocomplete, that's the shell. Powershell probably has okay autocomplete. In Windows the distinction has always blurred a bit.
I've recently given up on unix-type shells on Windows. Whether it's WSL1, WSL2, WSLg, MSYS2 or Cygwin, there's always compatibility quirks or performance issues that just reminds me that "it's not Linux". So I decided to just bite the bullet and go all in on PowerShell. It's still not a great default CLI experience but it can be made acceptable with plugins. But the real strength is in scripting, it's a good mix of high-level language and shell terseness.
