My experiences are mixed as well. For a short time I used Argon One with M.2 NVMe expansion board, so could use small M2 SSD to boot it up. That part worked fine, however all together it drained so much energy from the power supply that I was not able to use external USB SSD where I keep my movies (tested several 3+ A power adaptors).
I didn't want to add additional powered USB hub to that mix, so just switched to passive cooling case, where single power adaptor is running RPi and external USB SSD without issues.