There are many centralized platforms that many types of artists are dependent upon, that I would like to see decentralized. For example the whole 3D product ecosystem.
Artists are dependent on exposure for reaching clients, as well as for hosting their art and/or products and services.
Bitcoin Lightning is a game changer in terms of sovereignty for artists. Still there is a need to decentralize the central hubs that artists are dependent upon.
This is not easy to do immediately. Artists need reach and centralized hubs naturally have better reach. User traffic and visibility impacts how well artists can earn income from products they have made. This can be anything from art prints, tutorials, 3D models, texture products, promo/advertising work to technical tools they have coded.
Those that control visibility also have power over those that need visibility for their services. If we have high quality decentralized hubs where art ecosystems can flourish and attract traffic, then this will greatly counteract the centralized hubs of today.