Democratic Republic of the Congo is clearly the larger of the two: about 2,334,703 km² km² against 1,626,369 km² km², roughly 1.4× at true size. Drag one onto the other on the map above to feel the gap.
Both sit in Africa, so this is a same-region comparison: the new Equal Earth map draws both with the same honest geometry, and the real gap is exactly the 1.4× you see above.
The old map muddied it further: Mercator inflates Democratic Republic of the Congo about 1× and Libya about 1.3×, so on a Mercator-style map this pair appears 1.1× apart instead of the true 1.4×.
Libya fits 1× into Democratic Republic of the Congo.