great question. while a lot of these gofundmes started to fund evacuations, since the border will not open they have shifted to covering the costs of daily survival in gaza
the cost of food alone in gaza right now has been reported by journalists on the ground (including @siraj2024) to be 20 times the normal price.
and it varies based on location. the north is currently being starved by the IOF so food prices are higher
and there is a lot of evidence on tumblr that proves that these fundraisers do help
@ma7moudgaza2 was able to buy a tent for his family and is currently trying to pay for a solar panel
@siraj2024 was able to secure rent for a (bombed out, but still) apartment for his family over the winter
@mohdiwais was able to fund medical care for his sister after she was shot by the IOF using funds he raised on tumblr
a gaza-based charity called care for gaza has also been directly assisting families with funds used from their gofundme. they even post videos of themselves giving out food
and those are just a few examples. hope this helped!
