Yes and no. They serve roughly the same purpose.

I actually hated Powershell until I was forced to work on some automation scripts with it and realized that it's actually pretty cool.

Bash is good for quickly doing something in the terminal but for longer script files I prefer PS now. It feels much more modern and has a less janky syntax.

Funnily enough the reason I had to use it was to make my scripts cross platform between osx, linux and windows.