Some of them definitely. According to Dr HA Hellyer who was interviewed for the article:

“I keep hearing this from different people connected to the ground on Gaza that there’s a mini civil war brewing between Hamas and anti-Hamas figures,” he said.

“But the anti-Hamas figures aren’t people like the Palestinian Authority; the anti-Hamas figures are collaborationist forces with the Israelis."

“From what I’m hearing, Hamas seem to also be going after traditional families and traditional tribes that simply don’t want Hamas to be in charge, not because they’re getting support from the Israelis, but that they just don’t like Hamas.”

Interesting although contentious letter detailing an estimate of potential indirect conflict deaths (it includes potential future deaths).

However, it seems rather simplistic and/or flawed. They simply multiply the casualties Hamas have reported by a “conservative” x4 multiplier which then gives their number. The multiplier comes from this publication and states that most of the casualties are “indirect and caused mainly by preventable infectious diseases, malnutrition, and neonatal- and pregnancy-related conditions that emerged in the resource-poor post-conflict environment.” - which means that this number includes post-conflict casualties that have not yet happened and are preventable. Furthermore, the base number already includes a lot of indirect civilian deaths, and unlike the other conflicts that the x4 multiplier comes from is heavily reported on and followed by media/authorities.

This article from Die Welte is more recent and examines a more robust study.

Still, even if we took the estimate provided by the Lancet here at face value, OP’s claim of “millions of people” looks like absurd misinfo to me.

millions of people

Where did you source this data? Based on mainstream sources (UN, OCHA, B’Tselem) the number of Arabs displaced from modern day Israel/former territories of Mandatory Palestine from '47 until 2025 are between 995 - 1’105’000 and the number of casualties 67 - 105’000.

As a comparison, the number of Jews displaced from Arab countries during the same period number somewhere between 800-900’000.