Various performance-related tools

• V8 Heap Statistics
• Performance Monitoring System for React Components
  
• sitespeed.io
  
• Million Lint
  

State of React memoization in 2023

 https://2023.stateofreact.com/en-US/features/

• 86% used useMemo()
• 85% used useCallback()
• 73% used memo()

About 12% of auditory know something about stable links in component props (via useMemo and useCallback) but need to know how to memoize functional components to use those stable links.