if you're constantly tripped up by VSCode's file tree having basically no indentation such that it's hard to determine levels visually, there's an easy fix that's labeled badly (and will affect all trees in the UI that aren't the code editor window):

settings -> search workbench tree indent -> set to like 24px instead of 8 px

I found this because at 4k@100%, 8 pixels is like half a cat whisker width and when dealing with modularizing config files I often lost which folder I was in without collapsing everything, since with nixos, importing a folder automatically runs a file called default.nix. for every folder.