Snapshot 20220617: KDE opens Software on wrong monitor at start (session restore)

Hi all,

first: apologies if this is the wrong topic for that problem, but as it is some kind of boot problem, I choose this one.

Before Snapshot 20220617: if a software (like Thunderbird) was left open when doing shutdown, it was re-opened at the location and on the certain monitor it was open at shutdown time (I have two monitors)
After this Snapshot Thunderbird is opened again and it has even it’s correct size (full size, or if not full size then correct window size). However it is now re-opened on the monitor where the mouse cursor is. (“focus follows mouse” is / was always activated)

Typically at boot up when the old session is restored, windows should open on that monitor where they were closed, disregarding the “focus follows mouse”-rule. This seems to have changed. or am I missing something? Is this a bug at KDE?

This was obviously solved with Snapshot 20220619.