What is the difference between these Nerd Font types: mono, propo, script?

I want to install Nerd Fonts. I can install them through scoop. I added its bucket (scoop bucket add nerd-fonts) and when I want to install FiraCode, I get the following options:

scoop search firaFiraCode-NF-Mono  3.2.1   nerd-fontsFiraCode-NF-Propo 3.2.1   nerd-fontsFiraCode-NF       3.2.1   nerd-fontsFiraCode-Script   0.0.28  nerd-fontsFiraCode          6.2     nerd-fonts

What is the difference between the base NF, mono, propo, and script versions?

There is a version without any suffix avaiable (FiraCode). Am I right to assume that this is just the original font without any Nerd Font glyphs included?

What are the differences for the variants? Which are their use cases?

Which should I install when I want to use the font for coding in an IDE and terminal?