Delete all Bookmarks / Favorites from Safari
For those who've been in Apple's ecosystem for a while, this would be straight-forward. But since I come from Windows / Linux background, I'm not-so-familiar with the quick and (subjectively) intuitive shortcuts found here-and-there across macOS.



It's quite easy:


Click on Bookmarks menu > Edit Bookmarks
Here you get list of all your bookmarks and favorites (Tip: If you've imported your bookmarks from Chrome, all those that come from Bookmarks Bar of Chrome are listed under Favorites)
Click on the first bookmark (after favorites section), and hold down Delete key till all bookmarks get deleted

Repeat this for Favorites