Unfortunately I'm now allowed to share the client logo. Instead, I created a logo for testing purposes.
Once I open the PDF, the left-side version is displayed with Chrome. The right one is how Acrobat displays it. I have zoomed both images 250%.
The difference may not be that much in my example. With the actual client logo (and, without any zooming), the difference is considerable. In that case the new logo looks blurry in Acrobat, but sharp in Chrome or in Edge.