Western diplomats have turned to the previously neglected Palestinian Authority to fill the political vacuum likely to be created by the planned destruction of Hamas in Gaza, but know their chosen rescue vehicle is unpopular, deemed corrupt, and badly in need of a new generation of leaders that no one has yet been able to identify.
In the same letter, written on behalf of a group that calls itself the “Palestinian Christian Alliance for Peace,” Awad writes that a “sizable number of Palestinians support Hamas because it is seen as less corrupt and more effective in governing than Fatah, not necessarily due to its ideology.”
https://www.algemeiner.com/2021/07/14/palestinian-christians-defends-hamas/
Hamas’s political rule over the Gaza Strip has seen some social, economic and political activities that somewhat improved people’s lives, such as running schools. However, Hamas’s corruption also has an impact, and much of the group’s focus and spending goes on attacking Israel rather than domestic programmes.
https://theconversation.com/hamas-what-you-need-to-know-about-the-group-that-attacked-israel-215288
So here we claim that Hamas is seen as less corrupt, but Hamas use most of its money to fund military activities. I couldn't find any hard data that proves or disproves the claim that Hamas is less corrupt, but is there a reason Palestinians feel that way, a reason why they feel that Hamas is less corrupt than the Palestinian Authority?