It's because Powershell is a bit anemic. Coming from bash to Powershell at first, I disliked PS because I couldn't use it like bash; handling text was a pain, the moment you try to get fun with PS like you might with bash Windows will absolutely slap you with permissions or restrictions, etc.

Powershell shines best when you're automating _Windows things_ or anything .NET adjacent. If you play inside the very specific rules Powershell allows, it works great and your Windows experience will likely be nicer.

So if you find yourself working on Windows and saying to yourself "wow, this works great but I wish I didn't have to babysit it like this", PS is your friend.

If you need to automate Active Directory, Exchange, MSSQL (I guess some general maintenance things or quick queries without SQL Management Studio), etc, PS is your friend.

Anything else, and you basically need to figure out how to get around the restrictions Microsoft put in to prevent you from doing this, usually using .NET code in your PS script.