"Log in to the Snap store" dialog. Why? How?

I was using plasma-discover today, and saw - for the first time in a while - an update for a Snap package. Strangely, I had already received a notification that that package had updated, and sudo snap refresh reported that no updates were needed. However, I nevertheless curiously instructed it to update the package (after refreshing the package selection), whereupon the undermentioned dialogue window appeared:

Screenshot_20240725_210600

I’ve not seen it before. Notably:

  1. The hyperlink doesn’t operate.
  2. Entering my Cookies required credentials merely causes the window to reappear.

Is this a window drawn by snapd? If not, I’ll post at https://discuss.kde.org/ instead.