Judging by the video it looks to me like you're seeing two different framebuffers from the recent past. The reason nothing more recent is replacing them and you see flicker is because the compositor thinks Chrome has already opened over the top of the flickering window. So it never gets updated.
** Package changed: xorg (Ubuntu) => kwin (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/2092247 Title: Screen flickering when opening Chrome since 24.04 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/2092247/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp