[KetchupCider]

I just tested the /etc/upstart/defaultscreen.conf method to automatically switch to Library view, and it worked flawlessly on both the PW4 and the PW5! Both running 5.15.1. Wanted to share the results here if it helps.

Edited to add, I decreased the time from 300ms to 50ms (iteratively tested through 150, 100, then 50 across reboots on both devices) and found that 50ms works well on both devices to skip right to the Library on boot. I don't even see the ad-laden homescreen anymore with this!