Is there another more professional way to replace color in Adobe Illustrator?

Question

Working with color

I have to create an additional object with the color I need, which is not always convenient, is there an alternative way to get the same result?

Answer 1

1) Select - Same Apperance/Color/... and in the palette
2) Use global colors. Double click on a color in the "Swatches" palette and check the "Global" box. As a result, you change the color in the palette - the color of all objects with this color changes. Conveniently