At least according to the OCHA you're right . Though there's also a dashboard which shows around 7k for the entire Israel Palestine conflict since 2008. Maybe it got confused by the conflicting info on OCHA's website.
It's way higher than that. 46k is about when the stopped being able to identify the bodies. Gaza Health Ministry was very conservative - they only claimed a death was caused by the occupation when the body could be identified.
https://www.ochaopt.org/data/casualties