This is the inside of an older MSI GL73 9RCX. So some people on this sub told me that this open area is an extra storage space and that I could probably
MSI GL73 8RC/8RD (MS-17C6) original bottom case - sparepartworld.com
msi gaming laptop 17.3 GL73 9RCX-030 | eBay
MSI 17.3" GL73 Gaming Laptop GL73 8RD-010 B&H Photo Video