This is truly an impressive work! Something you'd expect a developer who plays the game to pitch internally after so many years of new content, yet having so few categories that can't accommodate that much anymore. Building is no fun anymore cause you can never find anything unless you've built 200+ lots and know all those tricky locations or the weird names (cause they rarely put the real-life item name into the Sims 4 name).
Sorting is also needed (by price asc/desc, or by dynamic feature like comfort level or environment), and filter items with an emotional aura