If it's not a secret, what kind of activity requires having "many dozen" of key files - I currently have 3 of ssh keys and already thinking I'm doing things wro

If it's not a secret, what kind of activity requires having "many dozen" of key files - I currently have 3 of ssh keys and already thinking I'm doing things wrong, especially if more than 1 of them used for Github/Gitlab auths on different accounts - makes things quite messy for me.