No, I really can't find any documents like that. Could you post a URL to the document you're referring to? Additionally, your claim of 60,000 deaths is an extreme underestimate. The dataset provided by data.techforpalestine.org lists more than 60,000 deaths, despite only including people whose corpses could be identified and directly linked to an Israeli attack. In other words, this does not include deaths from starvation, exposure, or illness. It also does not include unconfirmed deaths, and, of course, cannot include unreported deaths.

You may think data.techforpalestine.org is a biased source, but their total identified death count roughly agrees with every other source I could find.