Rather than accept Lazzarini’s assurances or offer to await the findings of the independent inquiry, the Biden administration quickly decided to temporarily pause funding for the agency, even though less than 0.1 percent of its employees in Gaza were accused of participating in the October 7 attack. In doing so, the administration imperiled the only organization capable of responding to the catastrophe caused by the Israeli assault: Scott Paul, a humanitarian policy expert at Oxfam, described the agency as the “backbone” of the response in Gaza and explained that up to 80 percent of aid to the area is dependent on it in some form. The organization has been feeding and sheltering more than 1 million people in Gaza.

https://www.motherjones.com/politics/2024/03/unrwa-gaza-funding-white-house-biden-administration-hamas/

That article gives a good overview since you seem to have missed it. I know there’s a lot going on, but this is important so it’s worth catching up on.