xfce4-screensaver blank freezes laptop

I am using Xubuntu 23.10 with xfce4-screensaver 4.18.2-1. After upgrading from 23.04, my laptop would freeze with a blank screen when idle (specifically, the indicator lights were on, but the screen was blank, and the laptop unresponsive, I could only turn it off by pressing the power button for 5s).

After observing the idle laptop, I noticed that this happens after precisely 5 minutes, which is idle time in xfce4-screensaver. My screensaver is "blank".

The laptop is a Lenovo 14ITL05, with 00:02.0 VGA compatible controller: Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] (rev 01).

I am still not sure this is an issue with xfce4-screensaver specifically, but I thought I would open an issue and proceed from there.

If you can give me a command line version that replicates exactly how xfce4-screensaver blanks the screen, I could narrow this down further, and if necessary close the issue and take it to the appropriate place.