Thank you for notifying me of that. This is fixed now and artifacts are here: Artifacts · build (#11200) · Jobs · Reform / reform-system-image · GitLab
Are you sure about the boot process taking longer? The old system image artifacts before the change are still available. Could you test whether the old ones do indeed boot faster than the new ones?
The messages were just hidden before. If you want to go back to the “old” non-default loglevel from last year, you can follow these instructions: Login menu appears, is then covered by errors - #3 by josch
This is a known problem and minute is in the process of fixing it. This is part of the ongoing rework of communication between sysctl/lpc and the dkms driver.