Chrome interferes with KDE

Jerome <[email protected]>
Newsgroups gmane.comp.kde.general
Message-ID <61661810.Pvn71VU93i@desk2> 
[Fedora 34]

After 70 days of uptime, Chrome (prior and latest version) is interfering 
with:

- opening apps from the QuickLaunch panel
- opening Gwenview from a KMail link to an image
- Ctrl-Esc for System Activity

When Chrome ISN'T open - all these work.

When Chrome IS open:

- nothing opens from QuickLaunch, or the requested app (eg: KWrite) coredumps
- Gwenview crashes
- Ctrll-Esc doesn't open System Activity

I've done a   plasmashell --restart &   and that hasn't made a difference.

Has anyone seen this behaviour before?
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