Hi Rose,
I spent 3 days at Matusadona in 2023 - so not that recent! African Parks has added several wilderness campsites through the park - at the time there were no facilities but they were planning to add water tanks and ablutions; I'm not sure on the progress there.
I love Tashinga campsite itself, where you literally camp on the peninsula with great sunsets, and some elephant that wander through the camp from time to time. Game drives along the lake shore produced more game, including lion, and I had a great visit to Kings Camp fishing village, where they will take you for a walk through the village and show you how they dry the fish that they catch.