THE IDEAL PR IS 50 LINES LONG

Summary from the TLDR Web Dev newsletter

The ideal size for small pull requests (PRs) is around 50 lines long. Smaller PRs are reviewed and merged faster, less likely to be reverted, and attract more review comments per line changed. Data from various repositories suggests that PRs between 25-100 lines offer optimal benefits across speed, review quality, and total code output. Extremely small PRs (under 25 lines) tend to have a higher revert rate, while very large PRs (over 10,000 lines) may receive less engagement and feedback.