I figured it out.

Any platform with a steemconnect login, should allow you to login normally, but it will also prompt you to create a keychain password.

Create a new password for steemconnect. (Make sure you write it down and save it somewhere safe)

From now on (as far as I know) you should be able to login easy by clicking the sign-in button if you are ever logged out of your device.

This is what I learned from talking with the staff in the discord channel for steemconnect. It worked for me. Best luck for anyone else struggling.