Vim has always been charityware. Any money that was donated to the project went to ICCF Holand, an organization that helps marginalized children in Uganda.
Sadly, 2 years after Bram's passing, this charity will be dissolved. Future donations will be sent to a different charity called Kuwasha: https://groups.google.com/g/vim_announce/c/pUNbNXBLbKw
Bram's work over the years has done much good for disadvantaged communities. Whether you use Vim or Neovim, consider following their original creator's example in whatever way you can.