I’ve never heard someone refer to a European dish as having umami, it’s just upper class people showing how cultured they are by knowing the Japanese word for savory flavor. To top it off it only gets used when talking about the big three Asian countries. No one is talking about the umami profile of Vietnamese food. It’s the same kind of Anglo person who would read Sun Tzu while drinking lapsang souchong in the mid 20th century. Both are fine things, but together you know this guy is sad about the fall of the British Empire.
I use it when thinking for myself while cooking, like "this sauce needs more umami", no matter if I'm cooking western stuff or not.
I don't talk about it though, I don't know people who want to listen to food nerd stuff.
I do!