Look for cases which position the power supply near the bottom of the case, or at least not directly below the power supply.
You might want to edit that one. I'm sure something was lost in translation.
Power supplies without an internal cooling fan are unusual, and units with high enough output to supply a full desktop are rare.
That one plays a little odd when we see Seasonic 400W and 460W fanless power supplies.
I'm also surprised that you were able to post a URL on your first message on SPCR. But stillWelcome to SPCR!
I've been around for years, just never made an account, SPCR and StorageReview used to do a few very small things together, which I was involved in from the SR side (just editing articles and moderating the forums).
Seasonic does indeed made fanless power supplies, but I think the word "rare" still applies. Almost no one has a fanless power supply, few manufacturers make them at all, and they are low-volume units. I used "rare" in the sense that dual-GPU video cards are rare. You can find one if you look, but they are maybe a thousandth of a percent of the market.