I was away from my PC for about 90 minutes. I left Chromium and a few applications running each on their own work spaces. When I returned I used Chromium briefly, switched to another work space and when I tried to switch back to Chromium using the dock icon I noticed that the indicator which would confirm that Chromium was running was missing. At first I thought Chromium had crashed but I looked through the work spaces and found Chromium just as I had left it.
snap changes and
snap info chromium confirmed there had been an auto-refresh from version 75 to version 76 while I had been away.
Clicking on the dock icon opened a new blank Chromium window (v.75). I then closed Chromium (v.75) completely and restarted it (v.76) from the dock icon. I saw the standard warning that Chromium did not close down correctly. My previous session was partly restored but I’m not sure up to what point.
I don’t think I’m reporting anything new and I am probably just confirming that known problems still exist. But I thought that I would post my findings as I was confused for a while and those less familiar with the Chromium snap might have been even more confused.