Is Redirecting an Old Domain to a New Website Beneficial?

Hello,

I've had a domain since 2019, and it used to host an automatic blog. I left it for a year, and during that time, it got hacked for about two days. I removed the hacked stuff and kept the domain. Google notified me about the hack, and I fixed it.

Now, I've noticed that some authoritative websites have links to my domain. However, when I checked these links, I found that they still led to my old domain. Do you think I can use these links for my new website?

If I make new blog posts for each of these links and make sure they're relevant and then use 301 redirects, do you think it will help my new website? Should I index them too?
Btw, there is no manual action against this domain. The domain age is 18 years old.

I'd appreciate any advice on this.

HussainSEO1 said:

Redirects are important because they: Forward traffic from one URL to another when the old URL no longer exists. Forward authority when backlinks point to a page that has been moved.

Click to expand...

Great, so the juice will be passed? Also, for example, one website has 10 posts pointing to my old domain, is it enough to point to an article, or should I redirect all articles?