A fellow Anytype user here. It went into beta a week or so ago! I believe anyone can sign up and start using it now.
It’s great. Similar to Notion but the way it structures notes is different. Bit of a learning curve if you want to use all of its features, but the basics are the same as Notion. It’s all end-to-end encrypted which gives me peace of mind. They plan to open source the code. Give it a try!
The real issue here is the transfer of power away from the artist. This artist has presumably spent years and years perfecting his craft. Those efforts are now being used to line someone else’s pockets, in return for no compensation and a diminishment in the financial value of his work, and, by the sounds of it, little say in the matter either. That to me seems very unethical.