If Seedphases are divided into multiple parts and stored in multiple locations, then if any part of the Seedphases in one location is lost or destroyed, it will not be possible to recover Bitcoin from the remaining parts.
I don’t know what the OP was thinking before coming up with an idea like this. How are you going to divide your seed phrase in different locations? If you are doing that then you are increasing the chances of you loosing your seed phrase because if anything happens to one of the seed phrase, then everything will be gone.
You are planning to protect your seed phrase, but you end up endangering your seed phrase. If you are storing your seed phrase, it should be written in a place, then make sure you store it in different locations, if you lose access to one of the seed phrase, then you will be having a back up.
The Ops question and the concept is valid, although maybe not well understood by many leading to confusion.
How: Shamir's Secret Sharing. See my earlier reply for details about why losing one part does not result in the loss of the entire phrase.
Stored in multiple locations: Increases the risk of compromise (further endangering the seed phrase) because more than one location contains the entire, plain text, seed phrase that can be restored.
Using SSS is essentially the solution the Op is asking for.