Is a 24 word seed phrase any more secure than a 12 word seed phrase? I’d think technically yes but practically no (assuming it’d be stored in 1 piece either way) If no, why do hardware wallets tend to generate the latter?
If you record the words out of order it does pose a significantly greater challenge to unscramble them if the order is sufficiently subtly implied by how they are stored (I’d share my method as an example, but that would defeat the purpose 🙃)
both are so laughably secure from a maths perspective that the weakest link is human error. So I guess 12 words just easier to manage.
prefer a “13th word” over 24 word mnemonics, particularly if not stored together