We do need a safe layer for non-engineers to customize apps.

All these clones of Photoshop and similar tools are mostly dead ends, they are experiments to see if you can do it, but there will be a consolidation around regularly maintained and powerful and complete apps that likely also offer support.

These experiments are dead-ends for the most part long-term. Fun play things, but they will not gain significantly user bases.

Plugins have long been troubled. It’s hard to make a plugin interface that is actually useful while also not breaking on every app update. And plugins have been such a massive vector for distributing malware.