@Doudouosm I live in the same town as this mapper!
To be fair, they will "get away" with (literally!) cutting a few corners in the places they are mapping - small densely packed buildings where the bits which stick out are less than a metre area and its better to have *some* outline than bits missing.. (such a technique would not work as well in the rural areas nearby where the houses are more spread out and have more complex layouts)
@Doudouosm that's Extrude Tool looks awesome, will definitely try it out.
@Doudouosm I believe that L-Shaped buildings are faster drawn with #mapathoner plugin https://qeef.gitlab.io/mapathoner/usage/#batch-l-shaped-building but that's just tiny detail :)
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