ssh – Does Pageant voluntarily apply a compound password to a few keys in a row?

In another thread, I asked a question about passwords and its mechanism to avoid being compromised in case of large amount of data example – https://unix.stackexchange.com/questions/ 500845 / is-using-the-one-passphrase-for-many-safes

What brought me here is Pageant, which recalls the secret phrase entered on one key and applies it to the other key. So, if I have two keys with the same passphrase in Pageant, I have to enter the passphrase once – is this the desired behavior?