Yes, Legion 5 Pro has two NVMe PCIe 3.0 2280 SSD slots, the second slot is empty and has a pre-installed heatsink with a thermal pad. (I installed Samsung 970 Evo 1TB
Lenovo IdeaPad 3 Core Intel i3 10th Gen - 8 GB/256 GB SSD/Windows 10 Home 15IML05 Thin and Light Laptop (15.6 inches, Platinum Grey, 1.7 kg, with MS Office) 81WB01BNIN : Amazon.in: Electronics
Lenovo ideapad 330-14IGM - SSD/HDD, RAM and Battery Upgrade and Replacement Guide - YouTube
Lenovo IdeaPad 330S Hard Drive Replacement - iFixit Repair Guide
Upgrade SSD, upgrade memory, install addiitional hard drive in Lenovo 330S laptop - YouTube
Lenovo IdeaPad 330S Hard Drive Replacement - iFixit Repair Guide