Yes, just wanted to drop what I think is the case with #kwallet. Any process can request any data (correct me if I am wrong @kde)
For encrypted user data at rest, #systemdHomed could work, but I have not seen easy implementations of that.
#KeepassXC can also act as secret service. But A even #KeepassXCBrowser is kinda janky, and I like to have separate stores depending on the importance.
(I am one of the people who use Firefoxes pw manager π«£)