If you're worried about the problems that one of the posters has been having with the NVMe-USB-C enclosures, I couldn't say what the issue is. You may have seen that another poster stopped having problems when they switched to HFS+ from APFS. I think you also have to be aware of possible power issues in selecting the SSD you use for these enclosures. From what I've seen, a 1TB P1/660P would be a good candidate for an NVMe-USB-C enclosure because they're pretty good from a power standpoint.
The possible issue with the Crucial P1/Intel 660P (they are pretty similar in the parts they use) is that they use QLC NAND, meaning that the endurance is less. The 1TB P1 has endurance of 200 TBW, in contrast the Crucial SATA MX500 1TB is 360 TBW. Now, 200 TBW is over 100GB/day over 5 years which for most applications won't be an issue but with video maybe it does write this amount of data - it would depend on the program used and your usage. You may say, well, that's OK because if it dies in, say, 3 years, I'll just get another, better SSD surely to be available then. That's fine, but these QLC SSD's also use SLC for cache and once it's filled, performance drops until it's dumped to the QLC NAND. So again, for typical usage, that may not be an issue but with what you want to use the drive for (video work disk), it may be. In which case, the performance difference between USB 3.1 Gen 2 and Gen 1 could be negated and maybe a traditional USB 3 external SSD would be better because something like a Crucial MX500 with TLC is better equipped to handle situations where the SLC cache overflows. If you look at forums devoted to FCP, you'll probably get a better idea for how the intermediate work files are used. Note that I'm not saying that these will be issues in your case, just something that could be an issue and you should be aware of.
Maybe you've seen these, but if you haven't, they're good to read and have more details on the power issue and QLC. The first and last section of the SSD reviews are the most important, the MyDigitalSSD review only has 3 sections. Of note is that there were no major issues with the MyDigitalSSD with the SSD they used (they also use Windows) and it looks like the Crucial is a better choice than the Intel and I see that the price isn't much different today on Amazon.
https://www.anandtech.com/show/13078/the-intel-ssd-660p-ssd-review-qlc-nand-arrives
https://www.anandtech.com/show/13512/the-crucial-p1-1tb-ssd-review
https://www.anandtech.com/show/13510/mydigitalssd-m2x-usb-to-nvme-storage-bridge-review
