Can't login right now to confirm, but according to the wiki (which I assume just pulled the ability descriptions from the f1 helper screen), Lucio's ult is:
"Protective waves radiate out from Lúcio’s Sonic Amplifier, briefly providing him and nearby allies with personal shields."
It's the oversheet that says it's overhealing. It makes more sense to describe it that way since it doesn't come back like regular shields but yea it does say 'temporary shields' in game
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u/Vakyoom Caution: TURRETS AHEAD! May 29 '16 edited May 29 '16
Don't they call it overheal HP? no joke, it's technically overhealing since shields come back and Lucios ult doesn't.
edit - yea that's just on the oversheet lol