This problem is also happening in my laptop computer running Ubuntu MATE 22.04.1 LTS ("Jammy Jellyfish"), which uses "arctica-greeter" version "0.99.1.5-2nmu3": when I'm in the login screen, if I press the "Alt + Windows key + S" key combination, the (Orca) Screen Reader does NOT start. The screen reader only starts if I go to the accessibility icon menu at the top of the screen and then click on the "Screen Reader" option. After I log in, the "Alt + Windows key + S" key combination works correctly in Ubuntu MATE to turn on and off the Orca screen reader.
This problem is also happening in my laptop computer running Ubuntu MATE 22.04.1 LTS ("Jammy Jellyfish"), which uses "arctica-greeter" version "0.99.1.5-2nmu3": when I'm in the login screen, if I press the "Alt + Windows key + S" key combination, the (Orca) Screen Reader does NOT start. The screen reader only starts if I go to the accessibility icon menu at the top of the screen and then click on the "Screen Reader" option. After I log in, the "Alt + Windows key + S" key combination works correctly in Ubuntu MATE to turn on and off the Orca screen reader.