Upgrading M.2 Storage On Dell Inspiron 15 7567

Hi, I want to upgrade the SATA 128 GB M.2 storage on my Dell Inspiron 15 7567 with the "Samsung 970 EVO Plus Series - 500GB PCIe NVMe - M.2 Internal SSD (MZ-V7S500B/AM)". I have a few questions, however: 1) Does my laptop support PCIe NVMe in its M.2 slot? Is PCIe NVMe worth the extra $20, will it give me significantly better speeds on my machine? 2) My current M.2 drive is booted with Windows. Can I transfer my Windows onto the new drive? If yes, then how? And if not, then I'm assuming I'd have to install from a bootable USB, where can I get an iso image for Windows 10 in that case?