I am also using chromium to feed a digital display, and running into the same problem (maybe even worse, the displays are using a window manager that displays all windows in fullscreen, without decorations - and so we're getting this notification blown up to 3840x2160 pixels, covering everything).
76.0.3809.100-1~deb10u1 on Debian 10.1 The message is coming up, because there's background process that checks the build date against the current time, and will start to complain if it's more than 12 weeks ago. It's possible to silence this notification by faking the build date by using this command line parameter: --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' This seemed to help in my case. Thanks, Adalbert
