Froze at 06:40, when I used Plasma to mount and open the volume.
Photographs: <https://people.freebsd.org/~grahamperrin/2023-06-25/06-40%20freeze/>. The freeze occurred a split-second after a click; the option to mount and open was replaced by the option to safely remove.
Probed not long after the event <https://bsd-hardware.info/?probe=e7dfbf94d0> but NB it's truly SDDM and Plasma (not LightDM and Budgie).
As far as I can tell: nothing useful logged, unfortunately. The freeze was hard (no ssh, and no shutdown in response to the power button).
No freeze with subsequent mount of the (cleaned) volume.
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