The ODI series between Pakistan and Zimbabwe was won 2-0 by Pakistan with one tie. While the series appears as 2-0 in the general records, Zimbabwe’s win in the Super Over made it 2-1 for the purpose of the ICC World Cup Super League which will be the main input for qualification for the 2023 World Cup. See this: https://www.espncricinfo.com/series/_/id/19882/season/2020/icc-men’s-cricket-world-cup-super-league
These teams have played 62 ODIs. Pakistan have won 54, Zimbabwe 4, with 2 ties and 2 no-results.
In Pakistan, the contrast is even starker: Matches 22, Pakistan 19, Zimbabwe 1, 1 tie (2020) and 1 no-result.
Zimbabwe’s only win in Pakistan was in 1998: https://www.espncricinfo.com/series/15876/scorecard/64596/pakistan-vs-zimbabwe-2nd-odi-zimbabwe-tour-of-pakistan-1998-99
Zimbabwe also won the Test series in that tour.
Other ODI records for matches between these teams:
Most runs: 1033 by Mohammad Yousuf, 906 by GW Flower
Most wickets: 35 by HH Streak, 34 by Shahid Afridi
Most dismissals: 26 by Rashid Latif, 25 by A Flower and Moin Khan.