From the screenshot, it looks like you're using a desktop computer, so Locus probably showed the approximate location of your Wi-Fi network or another internet source.
When you activate Locus on your phone while cycling, the app will use your phone's GPS module and provide a precise location within a few meters (in practice, 1 to 3 meters).
So no need to worry.
PS: It's best to avoid posting full screenshots online, as the list of your browser favorites reveals a lot about your preferences.
S.
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