The F 2.6 is the f-stop, "speed" or how light sensitive the lens is. A lower number means more light can hit the sensor.
A lower number also means you can easier get the background out of focus.

The f=3.8 mm is the focal length of the lens. This is the number that describes if it's a wide angle lens (like a GoPro) or a telephoto lens (like sports and wildlife photographers use).

In this case 3.8 mm needs to be multiplied with the crop factor of the sensor if you want to get the "35 mm equivalent". After googling I see that the 35mm equivalent is a 37 mm lens.

Also note that the camera only has digital zoom. The result will be, let's just say, not what you hoped for if you use the digital zoom.
My advice is to look for something with optical zoom. It's a massive difference. Even a used old camera is probably better, if you ever need the zoom. If you never ever need the zoom than this is probably fine.

It seems their marketing department needs to learn how the focal length works, since this diagram shows a longer focal length as wider. That is backwards.