> Although, as I understand it they don't actually financially support nextcloud. If you want hosted nextcloud that sends money back to development https://thegood.cloud/ or similar would do it.

This is plain stupid. If you want money to arrive at a developer, just send some yourself.

As for Nextcloud GmbH, it looks like they don't even want donations: https://help.nextcloud.com/t/is-there-a-paypal-donation-acco...

I don't think they want your money, not unless you are an enterprise costumer.

But feel free to donate to another open source project:

https://liberapay.com/