No. Gaming headsets do not put the emphasis on hi fidelity and accurate reproduction.
You want HiFi headphones, that cover the entire ear with a cup, for music and movies.
Salespeople are only going to tell you what makes them the most money, and it is generally BS.
Salespeople for the most part, know NOTHING about audio. There are a few who do, but they won't recommend gaming headsets for hifi, that's a good test.