"pwsh" is often used as the short-hand for modern cross-platform PowerShell to better differentiate it from the old Windows-only PowerShell.

I think pwsh is worth exploring. It is cross-platform. It is post-Python and the Python mantra that "~~code~~ scripts are read more often than they are written". It provides a lot of nice tools out of the box. It's built in an "object-oriented" way, resembling Python and owing much to C#. When done well the "object-oriented" way provides a number of benefits over "dumb text pipes" that shells like bash were built on. It is easy to extend with C# and a few other languages, should you need to extend it.

I would consider not dismissing it off hand without trying it just because Microsoft built it and/or that it was for a while Windows-only.

It's actually a pretty good shell! FOSS and cross-platform, too.