The calendar widget is below that.
The trouble is, it's very generic. The most distinctive thing about it is that it uses the 3 dot menu rather than a little gear icon for the settings. I've used a lot of calendar apps over the years, and still have several installed on my phone (I'm not short of space, and each of them does something better than the others), and while I don't think that's any of those I currently have installed it looks familiar enough that it might be one I've used before - but as noted, it is quite a generic calendar widget.
As for the final question, what do you mean by "opens Google calendar directly"? Do you mean specifically opens the Google calendar app, or opens the app that provides the widget? There are some apps out there that are just widgets, and so you can tell them which calendar app to open when you click on them, and there are others where the calendar app provides the widget, which obviously tend to open their own app.