Not the same thing, but something that perhaps fits a similar role, of being a umami-boosting delicious powder that goes well on almost anything: McCormick Umami Seasoning
https://www.mccormick.com/spices-and-flavors/herbs-and-spices/blends/all-purpose-seasoning-unami-with-mushroom-and-onionThe dominant flavor is actually mushroom, and I absolutely love the stuff on red meats in particular. It’s also fantastic for gravies, and it’s also tasty sprinkled onto fresh tomatoes. I am quite sad that I have used up my last jar of it, so I need to go back to USA and get some more…
As for chicken salt: also not the same thing, but have you ever used Chinese-style chicken bouillon powder? (They often call it simply “chicken powder”.) Unlike western bouillon powder/cubes, whose seasonings make it incompatible with most Asian dishes, the Chinese-style chicken powder doesn’t really contain any herbs or spices, so its flavor profile is “uncommitted” and can work in any cuisine. But it’s also yummy sprinkled on fries.
And what about just plain high quality chicken bouillon powder?