How do I make the about page show exact post counts?

Product Support
2

Hi James-Robert_Knight welcome to the forum

Maybe something like this CSS added to your Admin → Customize could work for you?

section.about.stats span.number[title] {
 color: #FFF; 
}
section.about.stats span.number[title]::before {
 content: attr(title);
 color: #000;
}