Not that I’m aware of.
The compositions browser features a column called “Instrumentation”. As we’re talking about compositions here, the instrumentation belongs to the composition as such and does not cover special (other/cross-over) performances or soloists. While a great deal of classical content might have information in this field, there are also gaps. This filed is most likely empty for non-classical content. As of a bug in Roon’s current heuristic instrumentation detection algorithm, this filed may also contain many plain wrong entries.
Keep in mind that what you’re asking for has a high chance of missing a great part of tracks or compositions as tracks credits as well as compositions instrumentation are often empty/not detailed enough. Additionally for track credits; they may also be overly detailed, listing any instrument that was used, ans thus mask the interesting/special occurrences you may be looking for (searching for Guitar in Heavy Metal tracks will not show the tracks with remarkable soli or riffs only).
Update: Feel free to change the category of this post to Feature Request (use the pencil right of the title) if you think that this should be/become one.