I see they accept donations (and it's probably the only way they keep themselves financially supported), does it need to go through Play Store's billing system?

I see they accept donations (and it's probably the only way they keep themselves financially supported), does it need to go through Play Store's billing system? Afaik, Google takes down open-source apps that link to their donation page without going through their billing system because it falls on their "no circumvention" policy. [0]: https://news.ycombinator.com/item?id=21268389 https://news.ycombinator.com/item?id=21268389