Yes, this is gluten free
Gluten-free. Glutamate is an amino acid found in tomatoes, parmesan and mushrooms, and is unrelated to gluten despite the first five letters — the resemblance is an accident of Latin.
msg is one of the names CiCi tracks for Monosodium glutamate. Ingredient lists use many names for the same thing, which is a large part of why gluten slips past careful readers.
Every one of these is the same ingredient. The number of names is a large part of why gluten slips past people who read every label.
Point CiCi at the barcode on the product you're holding and get this same reasoning in about two seconds, plus the carbs and the full nutrition panel. 360,000+ packaged foods are already read and waiting.
This answer comes from CiCi's ingredient lexicon — the same rules the scanner uses, not a separate article. Where reputable sources disagree, CiCi takes the conservative position and says so.