I installed it and it's a giant floating popup that's permanently on your screen. You can enable the "minimal" theme in the settings to turn it into a smaller-but-still-big pill shape. It doesn't look like there's a way to hide it in a context menu, at least not one I can see.
I don't fancy having a random floaty object in the way of my webpages, no thank you.
Edit: It appears to go away occasionally. This UX is unclear to me.
If you pin the extension in the toolbar, there's an option to "disable" the extension. The floating popup goes away and using the extension to summarize still works.
Yeah, I can't imagine what lunatic thought it would be a good idea to have this stupid orb floating inside the page. Heck, it would be fine if you at least had an option to move it into the toolbar where it belongs...
I don't fancy having a random floaty object in the way of my webpages, no thank you.
Edit: It appears to go away occasionally. This UX is unclear to me.