The Hamas may(?) have less leverage over foreign reporters. For local reporters there's a history of Hamas threatening and using violence against the reporters and their families to get the kind of reporting they want.
I agree with the observation that many of those outlets are mouthpieces for their respective government though.
Here are a few references to keep in mind when thinking about journalists working in Gaza (or you can think about Russia, Iran, North Korea, maybe China as being similar):
https://www.amnesty.ca/human-rights-news/gaza-hamas-must-end...
"The Gaza Strip is a particularly inhospitable territory for press freedom. Hamas and the Islamic Jihad harass and obstruct journalists suspected of collaborating with Israel," - https://rsf.org/en/country/palestine
"Gaza: Journalist facing prison term for exposing corruption in Hamas-controlled ministry" - https://www.amnesty.org/en/latest/news/2019/02/gaza-journali...
"The Palestinian authorities in the West Bank and Gaza are arresting, abusing, and criminally charging journalists and activists who express peaceful criticism of the authorities. ... Both Palestinian governments, operating independently, have apparently arrived at similar methods of harassment, intimidation and physical abuse of anyone who dares criticize them. ... The media freedom group MADA documented 192 incidents in 2015 in which Palestinian authorities infringed on journalists’ right to free expression through summoning and interrogation, arrests, physical assault, detention, and, in Gaza, forbidding journalists from reporting on certain issues or stories. That was a 68 percent increase over 2014. The pattern of abuse that MADA reported, including beatings, torture, warnings to stop criticizing the government, and seizing passwords to search social media accounts, is consistent with the cases Human Rights Watch documented." - https://www.hrw.org/news/2016/08/30/palestine-crackdown-jour...
Isra Al-Mudalla, the head of foreign relations in Hamas’s Information Ministry said, "The security agencies would go and have a chat with these people. They would give them some time to change their message, one way or another." ... “Some of the journalists who entered the Gaza Strip were under security surveillance. Even under these difficult circumstances, we managed to reach them, and tell them that what they were doing was anything but professional journalism and that it was immoral.” - https://www.timesofisrael.com/hamas-admits-intimidating-fore... https://www.memri.org/tv/hamas-government-spokesperson-we-de...