Variable-size nodes break dagre's centering, first paint flickers, and straight chains render with kinked edges. Here is the why and the fix for each. Every React Flow and dagre tutorial shows the same thing: uniform gray boxes, laid out in a neat tree, everything centered.
Source: [Dev.to](https://dev.to/dylanmerigaud/react-flow-auto-layout-with-dagre-for-custom-variable-size-nodes-12p7)