Problem with keywords in LR classic 2020

Here's a better and infallible method to obtain photos with keyword Dog, that will not suffer from the appparent finding of incorrect photos that you are seeing.

Go to the Keyword List panel on the right side of the Library Module. Point your cursor at keyword Dog. At the far right is an arrow pointing right, click on that arrow to obtain only photos with keyword Dog. In the screen capture below, I am pointing the mouse cursor to keyword Guinea Pigs, to the right of the number 111 is the right pointing arrow you should click on.

So let's consider the options. You can move your cursor to the left and click on a smart collection, and possibly get the wrong photos; or you can move your cursor to the right, and click on an arrow to the right of the keyword name, and get the exact right answers. The difference in time and effort involved is trivial; the difference in the results is noticeable, with moving your mouse to the right producing correct results every time. I think the best method is obvious.