C:\Program Files (x86)\Steam\steamapps\common\YourGame\Content\Paks\ Some games use:

If you’ve ever peeked into the installation folder of a modern PC game (especially one built with Unreal Engine 4 or 5 ), you’ve likely seen files named Pakchunk0-WindowsNoEditor.pak , Pakchunk1-WindowsNoEditor.pak , and so on. You might also encounter a situation where a game launcher or a third-party site offers a “Pakchunk0-WindowsNoEditor.pak download.”