As far as I can tell, this is no longer a problem. In particular, I have a ~/.config/autostart/chromium-browser.desktop file with a timestamp from 2017, and it is set to run Chromium normally (without --no-startup-window).
As far as I can tell, this is no longer a problem. In particular, I have a ~/.config/ autostart/ chromium- browser. desktop file with a timestamp from 2017, and it is set to run Chromium normally (without --no-startup- window) .