DavidR1378 wrote:
Can I add to this with my experience and it might make some sense. This only appeared on my iPad on the 3rd January 2025 which is a relevant date. We changed from copper wire to fibre optic cable on that day. As soon as we were up and running the little icon appeared. Is it possible this means you are connected to fibre optic network not cable anymore? Just my four pennies worth. Hope this helps.
Appearance of this icon and your switch to full-fibre broadband is nothing more than coincidence. Other Users that have noticed appearance of this icon are known to be using other (non-fibre) network bearers.
While purely speculative until Apple offers some other explanation, it is perhaps possible that the appearance of this new icon, seen for short periods after updating to iPadOS 18.x, is linked to background download of LLM (Large Language Models) that are used by Apple's updated Machine Learning and Apple Intelligence functionality.
Once initially downloaded to the target device, these models are infrequently updated - and this, possibly, might explain why this icon only appears sporadically while models are initially downloaded and installed.