Librem mini V2, Qubes 4.1 inserting USB mouse dis/en ables sticky keys

I login via Pureboot to my Qubes 4.1 os on a Librem mini V2 with a USB keyboard - you have no other choice - but I disconnect the mouse until the basic system is running including sys-USB.
Then when I insert the mouse’s USB - occasionally, not always but maybe 1 time in 3 or 4 - a pop up appears telling me that either the ‘Sticky Keys are enabled’ or sometimes that the, ‘Sticky Keys are disabled’.
It doesn’t just flip from enabled to disabled, it will stay with one or the other for a few logins.
Sometimes I insert the mouse’s USB and no pop up appears. In fact I get no pop up more often than I get one.

Again (as per my other post today) I’m not sure if this should be posted here or in the Qubes forum but this has never happened on either of the other 2 devices I run or ran Qubes os (4.1) on. Only on the Librem mini V2 with Pureboot.

As I recall the Pureboot version is 21.

Does this happen to anyone else? It’s not a problem but I’d be interested in any comments.