would it be possible to steal the boot decryption screen from kde neon? its feels more refined than just the text that manjaro has and to me is seems faster for some reason. there is probably some technical incompatibility that im not aware of, forgive me.
The following discussion may still be relevant.
If you check this out, it's being discussed of potentially bringing in Plymouth, but everything's still in the air right now, so don't count on things going one way or the other.