This Citrix Cloud "Critical" notification is only critical if you sign your authentication requests.
Using Azure Ad?
Picked no? (per MS doc), you don't need to do anything.
Picked yes (per citrix doc) you need to disconnect/reconnect the app from what I can tell.

I’m at a conference and so far my peephole camera protype is working pretty well. Captures anyone who walks past my room, and sends an alert to my phone. Runs off a glinet shadow travel router connecting to the hotel wifi and then providing its own wifi from that. @Viss

Fun fact. You can eat exactly 4 Ferrero Rocher before anyone will notice/ask you why you are at their Christmas party.