1980 totals, 4 years after the Broncos passed KC in total NFL wins. Chiefs aren't listed among the Top 15-20 up the left side of this screen shot, but the Broncos had opened up at least a 15 game lead by 1980, seeing that Denver leads the Eagles - the last visible team listed on the left, by 15.
By the end of the decade, the Broncos had 166 wins, and if you look closer, you can see the Chiefs peeking up into the list on the left side with 125 wins, 41 less than Denver.
By year 2000, the Chiefs were right behind the Broncos in total wins - but they're not as close as that looks. Denver still led KC by 36 wins
End of the next decade, Broncos jumped up to tie the Vikings for 4th most wins with 355 - now 57 wins ahead of KC.
2020, and KC is really closing the gap between themselves and the Broncos, now trailing by just 44 wins.
And, as posted above, by 2024, the Broncos lead was just 22 total NFL wins ahead of Kansas City