LiberaPay isn't used much based on https://en.liberapay.com/explore/recipients. GrapheneOS likely receives more monthly donations than the total amount going through LiberaPay based on past numbers they've given on the total going through it. We were setting up Open Collective at one point prior to having our non-profit but ended up just using our own non-profit instead of needing a fiscal host to handle it. We're on Benevity already because some people can only donate through that but we prefer Wise.