The ever increasing "melting" of multiple game genres into one game and the subsequent difficulty to assign that game a genre

I recently had the desire to categorize my steam library. I have over 150 games so I knew this would take a while but I never knew it would be this hard. Quite early I noticed a problem: The games are not easily attributed to just one genre!

This is not a problem for people who just order their games very roughly by the "main genre" of that game. But for people like me who like to further categorize their games it becomes an incredible difficult task to do if one does not want to end up with 50 categories that only contain two or three games!

Examples:

Sure. Both Skyrim and Mount and Blade are RPGs. They both have character creation, skills, equipment, combat and so on. Yet I am sure everyone here will ackknowledge that there are vast differences between the two. Now one could just assign Mount and Blade to the Action genre instead but then you get into the problem of how in the world it is supposed to be similar to Action games like Battlestations: Midway.

Or you assign it to a more specific genre Action-RPG but isn't Diablo also an Action-RPG? Hell in fact Skyrim is. So you just assign Skyrim to a genre called Open World RPGs right? But Mount and Blade does have that too.

Or take Company of Heroes 2 and Age of Empires 2. Both have units, base building, ressources, real-time, etc.. yet nobody will say they only differ in their setting and are otherwise easily put into the same category.

There are countless more examples but I think I got the point across. There are so many games nowadays that include elements of many different genres that it is super hard to easily categorize them.

Is this a problem for you as well? Or are you satisfied with few "super categories" like RPG, Strategy, etc...?