Can I opt out of strict mode?
<StrictMode> lets you find common bugs in your components early during development process. Although the Strict Mode checks only run in development, they help you find bugs that already exist in your code but can be tricky to reliably reproduce in production. Strict Mode lets you fix bugs before your users report them.
Opting out of Strict Mode inside a tree wrapped in <StrictMode> is impossible. This gives you confidence that all components inside <StrictMode> are checked.
If two teams working on a product disagree on whether they find the checks valuable, they need to either reach a consensus or move <StrictMode> down in the tree.