[DevTools Bug]: StrictMode not shown in component tree

[rickhanlonii]

Website or app

https://codesandbox.io/s/objective-lehmann-u2jn4?file=/src/App.js

Repro steps

• Open React devtools in codesandbox
• See that there's no StrictMode in the tree any more

How often does this bug happen?

Every time

DevTools package (automated)

No response

DevTools version (automated)

No response

Error message (automated)

No response

Error call stack (automated)

No response

Error component stack (automated)

No response

GitHub query string (automated)

No response

[rickhanlonii]

Verified that the StrictMode component is being rendered to rule out any weirdness:

[bvaughn]

IMO this is not a bug. It's an intentional decision, since <StrictMode> wrapper components are only one way to opt an app into strict behavior.

We have another task to track making it clear which subtrees are strict or not (82) as well as one for allowing devs to temporarily override strict behavior for an app/tree (#21367).

I'm going to close this task because I think it suggests work like #22201 which is only a partial solution. I'd rather approach something that addresses all of the above concerns.

Thanks! 🙇🏼

[bvaughn]

Related UI investigation: #22886