I also found the same issue, I am doing SEO for a taxi company in Saudi Arabia alharamaintours.com, I have built more than 10 backlinks on different sites but both Ubersuggest and Moz are showing only 3. I found the following answer on Quora maybe that is the reason:
"It can take time for Google to crawl and index new backlinks, so they may not appear immediately. The backlinks may not be from reputable sources, and Google may not consider them as valuable."
The Quora Answer link is:
https://qr.ae/pshjJ1