I'm coming back to CS:GO mapping after a couple of years break and after I reinstalled the game, I'm trying to add my old custom content back in, and it's not working. I have folders named csgo\materials_b and csgo\models_b with all my custom content which I don't remember if it's something everyone has or if it's something I've made myself, but either way none of the custom content in there shows up. Another thing which I don't know if it's a customization I've made years ago or a feature for everyone is the csgo_dev folder which is in the same place as csgo and sdk_content and alike. None of the custom assets in there show up either. In TF2, I know that you can add stuff to the tf\custom folder and it'll show up in Hammer and in-game so I tried it in CS:GO too without success.
None of these paths work even if I add csgo\custom\* or csgo_dev to the gameinfo.txt folder. Am I missing something obvious or it there no way of adding custom content without messing with the standard csgo\materials and csgo\models folders?