Starting two days ago (9/22/21) on both of my Kubuntu machines Chrome no longer displays system title bars and borders. The option in settings is enabled. Disable/re-enable/reboot hasn't fixed it. All other applications display this correctly.

My machines are both Kubuntu. lsb_release -a says Ubuntu 20.04.3 LTS. Chrome is 94.0.4606.61.

I've received no responses on the KDE-users list. On the Gentoo list the one person who responded said he also didn't have the system title bar but when he reenabled the feature and for him it works.

Using the system title bar allows Chrome to be pinned to all virtual desktops which I need for media. In the immediate term I'm using Firefox for that purpose but would prefer to use Chrome.

Thanks in advance.