I've used Apple computers since the Apple II+. I've never had anything but pleasure and ease with using their products and their software inclusions and integration, as well as sound legacy policies & good resale value, has saved me much money as compared with if I'd used the competition - contrary to the common misconception.
Unfortunately, & probably because of my failings, I have never seemed to be able to depend on keychain - perhaps because I've almost always had several computers but all of them behind the times.
I've tried many password managers but found most of them to fail sigificantly in one way or another. Now, I use enpass and have found it to perform excellently and I like the extra security of its ability to use a keypass as well as master password.