I have seen people claiming they have issues with external NVMe products on Mac, but rarely Windows so that's kind of backwards.

https://www.amazon.com/Plugable-Tool-free-Enclosure-Thunderbolt-Compatible/dp/B07N48N5GR

This one reviews well, may be worth trying it, not sure. Wait for someone smart here to reply with some facts.

A 256GB PM991 can be purchased for $20 on Amazon. Another $29 for a Plugable enclosure gets you a miniature portable drive capable of 800MB/s read/write over USB. Not sure what the PM991 is rated for, but likely at least 300 TBW, or ~1200 full overwrites.

I paired this setup with Ventoy and now I have a USB drive I can write tons of ISOs to for installing operating systems and running live boot linux distros and I have room to spare for utilities, drivers, files, etc.

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https://preview.redd.it/fbqurs9smc2b1.png?width=1787&format=png&auto=webp&v=enabled&s=12977f1ac29ee9775f68b9dd4c1908f55001b7a0

It's reasonable to be concerned. There are two different and incompatible M.2-to-USB adapters out there - ones for SATA M.2 and ones for NVMe M.2. This drive (Intel 660p) is NVMe.

I've used this model as my go-to adapter for a while. It's not the cheapest, but it definitely works with a 660p - I've used that drive in that adapter before.

https://www.bhphotovideo.com/c/product/1595433-REG/sandisk_sdssde61_4t00_g25_4tb_extreme_portable_ssd.html

If you want one even smaller, you can put a 4TB NVME in an enclosure. But if you're constantly writing to it, I would only use it with a fan blowing right on it. They tend to throttle when overheated.

Do you know of this one? https://www.amazon.com/Plugable-Tool-free-Enclosure-Thunderbolt-Compatible/dp/B07N48N5GR

Has some extra space on a regular nvme