Those two logos are definitely "confusingly similar" (legal term in trademark law) and, being in the same field (IT), would likely not pass a trademark test for co-existence. But, does X.org actually have a trademark on it? If yes, then Musk would surely lose. But if not, then Musk could quickly seek a trademark, after which X.org would likely lose.
In the latter case, the length of time X.org was already using this (unregistered) logo would normally not matter in trademark disputes, because they should have registered it if it was important to them. "First to register" normally wins.
Hartmut
Apparently, Elon Musk isn't very good at searching the Internet...
Wonder if there will be a lawsuit over this one?
Gilbert
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