The Ministry's figures have been contested by the Israeli authorities, although they have been accepted as accurate by Israeli intelligence services, the UN, and WHO
The (linked) https://www.vice.com/en/article/y3w4w7/israeli-intelligence-... says:
“There’s no possibility of collecting exact data in this situation but their system is generally transparent and credible,” said the Israeli official. “But only with civilian deaths, Hamas deaths simply aren’t reported.”