Steam is, sadly, out as an option for some Germans (from the various postings here, it seems like some have found a way around the Steam geoblock on SG in Germany but I have not personally had to do that so I can only go by what others offer here as alternative means for Steam access).
I do know some supporters who pick a 'price point/one month' subscription on SS or Patreon.
Once they are billed, they cancel.
It does not fix the Steam issue, but I expect the Patreon/SS version to be posted here in 1-2 days so those who desire to support Ocean with a onetime donation can.
Whatever your choice - I hope you enjoy it.
Some of the new content is funny as hell - and there is a lot more humor in the reworked chapters/scenes than there was before.
Cheers!!