There was this rather janky IDE for Powershell, way before VSCode even existed, called Powershell ISE, that had very similarly looking autocomplete behavior in it's terminal window.
It's still around, I just used it today. I rarely use Powershell but when I do it helps (somewhat) to use this vs straight command line. I want to like Powershell but there is so much about it that just feels off as a long time bash script writer. I am admittedly a novice at Powershell though, so maybe it is just me.