The fact is, it’s not easy to guess a seed phrase. In fact, I don't think it can even be guessed. So, even if someone sees where you wrote down two or more seed phrases, it can't really cause any harm. But the best approach is this: don’t write it down somewhere people can easily notice. The seed phrase should be so well hidden that nobody can find it except you, or the person you choose to tell.As for me, where my seed phrase is hidden, it's very hard for someone to notice the spot. But honestly, I haven't been able to engrave it on metal yet. I have written it on paper, but it's still hidden inside a waterproof container. Still, the best way is for someone to engrave their seed phrase on metal.
i don't think there is anyone who will want to even guess a seed phrase because that is like the most impossible thing to do, and losing their coin is a result of them sharing it with scammers or they will lose it, and these are part of the reason why most of the issue is caused by does that are holding because for some time now is always the same story when it comes to seed phrase, and people are always clicking on links also that grant scammers access so it takes more than just keeping your seed phrase it, and this is why people need to be educated specially when it comes to seed phrase keeping and security,.