How to correctly set the address in href?

Question

Search Engine Optimization

Hello!
We have such a link in the menu.
<a class="footer-right" href="/about">о нас</a>
Is it normal to set an address in it, /aboutor is it better straight from https://www.helloworld.ru/about?
The question is not in terms of performance, but for search engines or something else.

Answer 1

When transferring a domain, there is less fuss when the links are relative