Softgiving is just the broker, and while scummy, they aren't the actual charity. That would be CARE International.
Here's them describing what they're doing in Turkey in their own words:
Source (Archive)
They also have this disclaimer on their fundraising page:
Source (Archive)
Who knows if they actually do real work, but considering that most of their work is "refugee" resettlement and they have a disclaimer that lets them spend money wherever they want, it's more likely that their real business is human trafficking and not relief efforts. Charity rating sites like Charity Navigator are useless because they exclusively look at finances which are easily gamed and not at the actual effects of the NGO's spending and actions.
Mr. Beast's charity is verifiable as we saw the surgeries that he paid for with his own money in the video he made. Hasan's charity is a black hole that he isn't willing to donate a significant amount of his own money to.