What is this globe icon with blue down arrow in my menu bar?

Question

At far left of my top bar you can see a globe-like network sort of icon with what I interpret as a blue download arrow.

This icon appeared recently for the first time for unknown reasons. Clicking it, right-clicking it, double-clicking it, etc all produce no effect. It's not interactable.

What is this and how can I learn more about it and/or remove it if appropriate?

Answer 1

I clicked on the icon with Accessibility Inspector and a Libreoffice download window popped up. It might be related to that, if you have Libreoffice installed.