Is there a way to verify this? I tend to agree, but I have no way to be rigorously convinced.
For example, iirc Palestine health authority reports the names of all the civilians[0] that have been killed. I think the number is something like 30k. I frequently wonder if that number is simply exaggerated, as it would be in Palestine's interest to do so. However, if the number is supported by a corresponding list of the names of individuals, I would think the Israeli intelligence services would be incentivised and capable of refuting a significant enough number of false claims[1] to cast serious doubt upon the claimed number of civilian deaths.
To my knowledge, Israel has not done so, and so I don't doubt the number too much.
[0] As noted, it is extremely challenging to pin down whether or not someone is 'Hamas'. I assume Palestine is reporting all deaths as civilian, in the same way Israel seems to report them all as combatant.
[1] whether it is an individual that does not exist, perished prior to Oct 7. '23, or is still alive.