Front left is sitting low. Is the strut (original) given in to a leak after 118K miles and almost 10 years since build (10/05)?

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2017 Explorer 3.5 EcoBoost
2007 E83 X3 3.0si Crimson Red, Gray
2006 E53 X5 4.8is LeMans Blue, Beige (Gone)
2013 JK Unltd Sport Flame Red, Black(Gone)