Help Center 2.0 uses a different URL schema than legacy Help Centers used. The described numbers are not present in article URLs on Help Center 2.0..
If you have two FAQs with the same exact name, whether unpublished or not, the second FAQ created will have numbers generated at the end of the URL to differentiate.
If you do not want the numbers at the end of the second FAQ URL, please do one of the following:
1. Change the name of the first FAQ to something different than the second FAQ
2. Make a change to the second FAQ’s title and save; change it back to the preferred wording in the title; then save again for the URL to be corrected