Maybe you can check https://liberapay.com/.

You can take a look at the supported projects before signing up.

You can find projects like GIMP, F-Droid, Mastodon, codeberg, Lemmy there, and you can also find programmers that you may know.

Oh yeah I’d love such a thing!

You could log to one service and use it to give to every open source project, no matter if they use Patreon or another platform.

Still it would be sensitive to handle as there would be credit cards informations..

What I’ve created is a Firefox bookmark folder with the « donate » page of every project I wanna support.

I don't think that's possible.

As a creator, I'd be much more interested in a way to get paid into my actual bank account in such a way that didn't involve Bitcoin (et. al.), PayPal or Stripe.