I bought the new Samsung 980 Pro 1TB (PCIe 4.0) and put in the Lenovo Yoga Slim 7 (PCIe 3.0), I saw only ~10% decrease in raw performance : r/AMDLaptops
980 PRO | Consumer SSD | Samsung Semiconductor
Samsung SSD 980 NVMe SSD Review | MMORPG.com
SAMSUNG SSD M.2 500GB 970 EVO Plus NVMe Internal Solid State Drive 980 PRO 1TB Hard Disk 980 nvme 250GB HDD for Laptop Computer|Internal Solid State Drives| - AliExpress
New Samsung 980 SSD improves on 970 EVO, EVO Plus performance | Ars Technica
Samsung 980 SSD review | Rock Paper Shotgun
980 PRO | Consumer SSD | Samsung Semiconductor
Samsung 980 Pro SSD vs. Sabrent Rocket 4 Plus | TechSpot
Samsung 980 PRO 2TB NVMe SSD Review - Legit Reviews