Topic on Template talk:Path
<path-to-game> is used to refer to the actual install folder of the game -- regardless of where it might reside.
The only time <Steam-folder> and <path-to-game> isn't either of the appropriate paths to use is when you're trying to point readers to a specific workshop mod or folder, which resides below e.g. \SteamLibrary\steamapps\workshop\content\<steam-appid>\<workshop-id>\
But those occasions are really rare on PCGW.