ΔE 20.9, loose: different enough that you should pick on purpose. Cerberus Brown is much more muted than Averland Sunset.
Can I use Cerberus Brown instead of Averland Sunset?
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Cerberus Brown is much more muted than Averland Sunset.
Can I use Averland Sunset instead of Cerberus Brown?
The same difference applies the other way round: Averland Sunset is much more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.