Balloon notification keeps popping up and is driving me nuts

[knoa]

I am in the same situation as TheBoyler (I mean, without Elgato). I do not own any Elgato products, and I have never installed any Elgato software. At the very least, DisplayLink 1.11.0, which I had been using right up until recently, did not have this issue.

Timeline:
2025-10-23 (Oct 23) Updated DisplayLink from 1.11.0 to 14.1
2025-11-11 (Nov 11) Applied the Sequoia 15.7.2 security update (possibly unrelated)
2025-11-14 (Nov 14) Started investigating because the popups kept appearing
2025-11-20 (Nov 20) Updated to DisplayLink 14.2 (released on 2025-11-18)

I updated to the latest 14.2, hoping it would fix the issue, but since there is nothing relevant mentioned in the release notes, I am not very optimistic. If this does not help, I plan to roll back to the previous final 1.12.4, or even to 1.11.0, which had been working fine for me. If the issue still persists, then in my environment, the Sequoia 15.7.2 security update might be involved after all.

I also use Duet Display. Could it be related?