Remove the lid from the Instant Pot and select the Saute setting. Add the sodium-reduced chicken stock, sodium-reduced soy sauce, ground white pepper, kombu, bonito flakes, sea salt, and sesame oil. Allow the mixture to come to a low boil. Select the Keep Warm setting on the Instant Pot, then let the mixture steep.
Add the sliced mushrooms to the stock mixture. Allow the mushrooms to simmer in the mixture for 2 minutes. Set aside.
Julienne the carrots, slice the peppers and green onions, and set them aside.
Prepare the ramen. Set a small stockpot filled halfway with water over medium-high heat; when the water begins to boil, add a pinch of sea salt. Then add two packages of instant ramen noodles, and cook until the noodles are al dente, about 2 minutes.
Portion the ramen noodles evenly into 2 serving bowls. Add 3-4 ounces of salmon, sliced mushrooms, julienned carrots, and sliced peppers. Ladle the hot broth into each bowl. Garnish with sliced green onions, sesame seeds, and garlic chili oil. Add half a hard-boiled egg to each bowl. Serve.