All footprints outline buildings and are appropriately squared.  some footpritns envelope multiple buildings e.g. WAY: 1286732060 & WAY: 1286732059. Some building footprints could be more accurate e.g. WAY: 1286732031 & WAY: 1286732034 should be L shaped. Hope this helps.
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            Published using OSMCha: https://osmcha.org/changesets/151837635
            