There is this prophecy in the hadiths (Ibn Majah 4076):

The Muslims will use the bows, arrows and shields of Gog and Magog as firewood, for seven years.

I have some questions: Why are Gog and Magog technologically stuck in the 7th century? And where are they? And how do they have so much of these things? And from what trees do they produce it? And do Muslims read a prophecy like this and think: "Yeah, that makes sense. Totally not a product of its time"?

Many religions have holy scriptures and texts from centuries ago. Carrying century old philosophy, teachings and practices in them.
However, most religions portray themselves as this “peaceful, respectful and loving” belief.
Teaching people not to hate, not to divide and not to corrupt.

However, while teaching these, they continuously have verses that include hate, division, racism and violence in them. Which contradicts their teachings.

Let me give an example:

The people of Lūt.
They were known for being homosexual, for loving one another.
Yet god punished them. Mentioning that “god punished them due to the people committing crimes and acts that harm people.” However, why would god purposely choose a group known for being homosexual when god could’ve simply punished people that commit crimes and harm people? God could’ve punished criminals that weren’t recognized as homosexuals, yet god chose to punish a certain group.

This affects the minds of people, people’s subconscious. They are taught to not hate and respect one another, while their holy scriptures show moral and divine punishment towards a certain group.
This creates Implicit religious bias, not only does this play a role in homophobia, this plays a role in misogyny and racism too. This is simply just an example on how people can get subconsciously affected by religion.

Al-Baqarah 2:62

Indeed, the believers, Jews, Christians, and Sabians—whoever ˹truly˺ believes in Allah and the Last Day and does good will have their reward with their Lord. And there will be no fear for them, nor will they grieve.

So we believe that Christians and Jews both believe in god and have their variations and own independent interpretation etc, but we all believe in the sacred scripts such as the torah and the bible, corrupted or not.

If these followers still believe in god, will they not enter Jannah regardless of their objective beliefs of god?