Most are dictatorships so the attitude of the government doesn’t reflect much except how greedy the elites are, but charity is big in Muslim countries. The whole “pull yourself up by your bootstraps and if you rely on others you’re a leech” attitude doesn’t really resonate with Muslims.

That said, if I had to raise an example I’d probably pick Tunisia. Not that they don’t have wealth inequality or poverty, but they’re doing decently well for themselves and have a government that’s actually trying to fix these things.

Also almost all of the non-Gulf Arab world has significant social welfare to my knowledge.