For those of you unaware: https://nushell.sh/
This is by far the most unique shell out there, since it doesn’t use raw text as output/input to command line calls, but instead an actual data structure. It’s like if every CLI call returned a database table, in a way.
I always had an aversion to PowerShell syntax.
They’re certainly both object shells. If you’re already familiar with PowerShell, there’s probably no reason or need to switch. I’m not familiar with PowerShell enough to identify where else they differ.