It looks like experimental.refresh-app-awareness isn’t working for me. I have set it some time ago (have rebooted several times after setting option). But chromium snap updates while it running causing loss of changes made until I restart snap.
Option is set:
% sudo snap get core experimental.refresh-app-awareness
true
% ls -la ~/snap/chromium/current
lrwxrwxrwx 1 baz baz 3 Nov 22 13:11 /home/baz/snap/chromium/current -> 949
“current” link was relinked at 13:11, while I was using old version of snap until 15:32
% ls -la ~/snap/chromium/937/.config/chromium/Default/Login\ Data
-rw------- 1 baz baz 589824 Nov 22 15:32 '/home/baz/snap/chromium/937/.config/chromium/Default/Login Data'