Hi There,
Ahref and Google Search console are two diffrent tools. Google Search Console update the data of backlinks whioch indxed by Search Engine every weeks. But in Ahref it provide the backlinks data of all backlinks which are not indexed by Search Engine too. That is why the Google Search Console show the less number of backlinks.

Also The results of these two tools never matched to each other. If you use Ubbersuggest and Semrush they too differ in the results of Backlinks to each other.