FWIW, while Dolphin doesn't accept donations, the non-profit foundation behind it has been collecting money for almost 15 years via ads and referrals. All of the financials are transparent: https://opencollective.com/dolphin-emu
One notable thing here is that even if the proportions are the same, in the end the absolute amount of money you are putting in your savings every month is higher. Or, in other words, if you're going in vacation in a less expensive country, your purchasing power is doubled.
96,500CHF is also a fairly conservative estimate. If you work at e.g. Google, you can reasonably expect twice that amount after 2-3 years working there (factoring in bonuses and stock). The tax rate is also lower compared to Germany, especially when you reach larger sums of money.