Short version: yes.
Longer version, as explained here:
Some browsers, such as Android Firefox, tend to load the largest PNG icon they find. This behavior is arguable and it has at least a drawback: it can conflict with the 192x192 icon dedicated to Android Chrome. Suppose you designed the Android Chrome icon with a drop shadow. You don’t expect to see this picture in other browsers. The workaround to this issue is to generate an “even larger icon”.
Not exactly sure how we can handle this - either revert to a non-touch-icon version, or stuff an 194x194 version into your favicon… 