Really depends on the exact scenario of me finding keys.


I'm not planning to search for someone's keys intentionally

If it happened unintentionally, like me going to a library and finding a note with a seed in a book, I'd try to find the owner of the keys. If I couldn't, I would keep the seed but not take the coins, in case the owner has a backup and is simply choosing not to touch the coins. Then after many-many years I would assume that the owner lost access, and since I couldn't find them, the coins are now mine.