When Anthropic released "claude design" people were telling that figma is dead now, but in fact claude design didn't move forward and stayed as a "fallback tool" when you quickly need to check / edit something. And for the serious work you still go to Figma and other designer tools. I have a feeling that Whiteboards, Sheets, Docs and so on will be the same - it's a nicer way to present artefacts, discuss them and maybe make notes, but for the proper editor experience you'll go to the tools which were designed for these things. And I'm not saying that Claude Something tools are bad, they're just overly simplified and limited, probably on purpose.