I use Kagi on Firefox mobile all the time, and quick summarize is one of my favorites features, so when I couldn't find it I was a bit worried and saddened.
Thankfully, it's not gone, just harder to find. The text is super similar to the blurb of the site, it took me going to the desktop site and finding it there to realize it wasn't entirely removed.
On the upside, I think it's great that an easier way to load a page into assistant from the mobile search was added, thanks for all the great work! ✨ 👍
To find the quick summary/summary on the page
