I mean I'd say Mackenzie Scott (fka: Mackenzie Bezos) is someone who should be lauded more here. Not that it's a competition or that one takes away from the other but she's doing more to chip away at the status quo of philanthropic giving vs others.
In 2020, she gave away nearly $6 billion to 500 organizations. And has distributed $2.74 billion so far this year to about 286 orgs. From what I've read, these grants/donations don't come with any strings attached unlike grants from a lot of big foundations.