The only people giving anything away here are the developers/publishers of the games in this bundle, same as the Stand With Ukraine bundle last year (which was a better bundle). Anyone buying the bundle is aware of where the money will go, but it isn't a donation by any stretch of the imagination. I'm happy to do it, I get a few games I'd been eyeing for far cheaper than buying them on sale, and maybe my money helps feed or clothe someone who would have gone without otherwise.
Btw, it's been in other bundles before, but if you enjoy tower defense where you also play as a supremely powerful unit on the field, X-morph defense is pretty good. It has a stupid name and an even more dismissable logo, but it's actually worth checking out. The ridiculous level of casual destruction is arresting; the first time I fired a charged shot through a city and watched buildings buckle and nearby ones' windows blow out had me stop playing for a moment in shock at what had happened. It's in this bundle, hidden quite a ways down.