You probably got downvoted because you admitted your failure of using the WWW. The problem you describe only happens on "recipe" websites that are 99% advertising and written like a blog, with every other word set in bold to maximize the ad revenue.
These websites should be avoided entirely. Proper recipe sites include en.wikibooks.org/wiki/Cookbook:Table_of_Contents, based.cooking and of course https://web.archive.org/web/20110323153937/http://www.ottavi...
I always avoided powershell, because it used to have a loading time that is longer than a second even on a modern system. But after your post I thought I give it a try.
The first thing you encounter is a .tar.gz file that does not extract into its own subdirectory. Instead it pollutes the current directory with 273 different files, which is just plain incompetent.
Then, the pwsh executable is not marked as executable, so you have to manually chmod +x on it which is just stupid.
Finally, pwsh has a loading time of 273ms for its 70 MB "bundle", which is okay I guess, but imagine running your scripts with that overhead. fish has 32ms on my system, and plain old bash 4ms.