Could very well be on it, when was image from? Buildings and billboards are very typical locations for antennas, especially 5g. 5G can be the size of a bread loaf.
All I will say is that I work in communications and have for 20+ years. These maps are used continually for evaluating the possibility of connecting devices.
Because of requirements of 5G, there are multiple ones in dense areas many hidden on building signs. Even stadiums have multiple 5G antennas they are everywhere.
Here is a picture of a billboard with tons of 5G... not in Moscow. They often hide them sandwiched inside where they can't even be seen.
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