When the lead players gets the final kill all kill counting immidiately ceases even if players get kills after that.
I had a rare match where this actually mattered as I was tied for kills in 5th spot as widowmaker vs the lead junkrat. Junkrat gets a kill on me but ends up tripping my mine and there is a “click” sound for the elimination but the kill is not counted and thus I get a loss instead of a win because I came in 5th and not 4th.
Maybe allow a small overtime or some kind of margin on that two leading tied people dying to each other results in a draw/continuation rather than counting frames on who connected first.