Do links that lead to another online store harm an online store?

Question

Search Engine Optimization

Hello!
The question is this:
There is an online store that has a link in the header to another online store, the header is fixed and is present on each page of the site and links, respectively (3 pieces per page). It turned out that there are 80,000 links from the online store that lead to another. Does this affect the position of the store in search engines?

Answer 1

Immediately answering your question: if you are not afraid of an affiliate, then such a scheme will only help.
This is a good way to spread the weight across several of your stores.
We have a client who is engaged in clothes of large sizes.
He has two websites:
Of course, both stores have different audiences. Each of them is tailored to your needs: male and female, respectively. For general requests a la "clothes of large sizes" we deliberately move women's clothing, since it is usually searched for.
Bottom line: both sites sit firmly in the top on their topics.

Answer 2

If the second site is of high quality, then this is only a plus. Because Google (I don’t know about Yandex) also takes into account the quality of outgoing links