Why my number of backlinks in Search Console have decreased?

We’ve been noticing for a while that the number of backlinks in Search Console keeps decreasing. We are doing local SEO and we use Yext to push listings on multiple directories (relevant to the industry) with the NAP of our clients.

We have around 60 active listings on different directories for each client which showed as backlinks in Search Console. Now we keep seeing that this number of backlinks is lower and lower.

Do you know if Search Console shows all backlinks in the report or if it includes "nofollow" links in the report? Or a reason why we could see this decrease?

Thanks! 🙂