Hi @creativechef253 ,
Here’s the [https://topics-cdn.dell.com/pdf/xps-15-9575-2-in-1-laptop_service-manual_en-us.pdf|service manual] for the laptop, taken from this [https://www.dell.com/support/home/en-au/product-support/product/xps-15-9575-2-in-1-laptop/docs|webpage].
On p.10 it shows that 8 M2 x 3 Torx head screws are unscrewed to remove the base cover.
Here’s just one [https://www.parts-people.com/index.php?action=item&id=22816|supplier]. Alternatively just search for T5 2mm x 3mm screws to find suppliers that suit you. (being Torx head would be up to you as it is the size that matters i.e. M2 x 3mm and not the screwhead type and your local hardware store may carry them)