No, there is not. Loading times from SATA SSD and NVMe SSD is basically the same. Look for example at https://www.techspot.com/review/2116-storage-speed-game-load... - In all loading time benchmarks there is a huge spike for the HDD, and then a minimal difference of ~1 second or less between the slowest SATA SSD and the the fastest NVMe SSD. Note that this includes PCI-E 4.0 SSDs.
Sure, might change in the future, but no game right now uses the future APIs (direct storage) that might lead to bigger differences. Which is no surprise, as Windows 10 does not support it.
Sure, might change in the future, but no game right now uses the future APIs (direct storage) that might lead to bigger differences. Which is no surprise, as Windows 10 does not support it.