It seems like he intends to give away the same way he did until now.
How is this a good idea considering that a political instability can wipe out all that effort?
Here's an idea: Give away your wealth to run unprofitable but essential "machines" like social media and news organizations to stop the vicious circle the humanity plunged in. Do it just like Musk but hand it to an independent organization that does't push for an agenda or profits.
Russians for example, pay social media personalities to push their talking points or even better they pay people who push talking points that are beneficial to them without directly agreeing on the transaction. Hijack the method, pay influencers you believe are beneficial for your causes and ideals.
It may look like just another billionaire trying to influence politics but you can make it into transparent institution. You can award prizes(monetary and honorary) like Nobel did.
Wouldn't be great if Twitter was run buy a transparent institution that releases logs, stats and full source code and doesn't need to do sketchy shit? Sure it would be imperfect but it can be beneficial, like Wikipedia for example.
Make social media into an impartial infrastructure with decades of runway and let people build the specialized things around it.