Even people who don't give a sh** about ukraine and buy such a bundle would be of help. But let's put aside the allegation of "greed" and "personal gain". It's all about where the money goes. Instead of "filling their pockets" gog would transfer a certain amount of income to help people. Good cause, good pr.

Our countries are already giving too much to the Azov nation. How about we spend it all on ourselves instead.
A bit rich from someone from Germany. The first half of the 20th century was a great time thanks to the Germans lol.

The sole incentive of a person donating to a charity should be the wish to support the cause of that charity.
If someone says: "Oh, I'd love to support cause X, but only if I get something in return",...then something went terribly wrong.
The knowledge of one supporting the good cause (if only with a small amount of money), and that warm fuzzy feeling that this knowledge gives you, should be reward enough for everyone.
To expect any other reward (beside that warm, fuzzy feeling), waters down the "I want to help" - aspect to a point, where it is basically rendered moot.

So: you want to help?
Well, then look for an aid organisation that supports a cause that you want to support - and donate to them directly.

Btw: am I the only one who doesn't miss the irony when the OP writes: "Dear GOG please [...] create a 100% (profit free) donation bundle as well"?

The OP is basically asking GOG to do what he himself (and quite some others here) isn't willing to do - to donate without getting anything in return.

Really? Argentum ad hominem? Running out of arguments do we?

if you struggle financially you shouldnt buy games
that isnt any less an argument than blaming all russians for the current war