On your computer: C:\Users\[YourUserName]\AppData\Local\Google\Chrome\User Data\Default\Bookmarks (Windows) ~/Library/Application Support/Google/Chrome/Default/Bookmarks (Mac)
%LOCALAPPDATA%\Google\Chrome\User Data\Default\Bookmarks Mac: ~/Library/Application Support/Google/Chrome/Default/Bookmarks Linux: ~/.config/google-chrome/Default/Bookmarks bookmark location chrome
Backup that file = backup all your bookmarks. bookmark location chrome
On your computer: C:\Users\[YourUserName]\AppData\Local\Google\Chrome\User Data\Default\Bookmarks (Windows) ~/Library/Application Support/Google/Chrome/Default/Bookmarks (Mac)
%LOCALAPPDATA%\Google\Chrome\User Data\Default\Bookmarks Mac: ~/Library/Application Support/Google/Chrome/Default/Bookmarks Linux: ~/.config/google-chrome/Default/Bookmarks
Backup that file = backup all your bookmarks.