we've also seen countless users on this forum make posts blaming their hardware wallet for the funds being stolen, and it almost always turns out to be a mistake the user has made instead (such as storing their seed phrase in their emails).
I have carefully reviewed the stolen comments and have difficulty confirming the true reason for the theft. I am not a professional, but I believe that there is no problem with the firmware of the Trezor and the Trezor Suite, only the hardware may have problems. If a backdoor is left on a small amount of hardware, ordinary users and professionals cannot detect it. Of course, if the Trezor firmware can effectively eliminate the harm of fake hardware wallets, it can only be stolen due to user errors.
You can even raise the more general concern. Is it possible that there is a bad entity (located, let's say, in China) outside Trezor company that produces counterfeits of wallets? I would not answered negatively. Even if such company doesn't exist today it can appear tomorrow. Thus, it is always better to buy the stuff directly from brand.
It is a fact that there are many cheaters in China, so I don't want to buy Keystone and Onekey, even though it is free shipping (I am Chinese). But don't underestimate the Europeans, too.
The high probability is that the user's own problem caused the theft. Having professionals to answer questions can make newbies feel ease. o_ e_ l_ e_ said:"Just one incident can wipe me out." It's better to be cautious.