After the last update of my librem 15 v3, my usb mouse loses control of the cursor after a few seconds of inactivity, and I have to click any button to reactive control. The trackpad continues to control the cursor without any intervention required.
I found this superuser question/answer (https://superuser.com/a/888852) that looked promising, but I’m not seeing an /etc/laptop-mode directory.
The last update of over a week ago disables all USB after disk decryption. If I plug in my USB mouse at the login screen it works and continues to work.