Plain Tiled Match Three 3D is a game where gravity affects tile movement. i find the controls are straightforward and tapping works fine.
Tap and drag to select tiles, then swap them to match three.
The game uses a basic swap mechanic where you tap and drag to move tiles. The physics can feel wonky sometimes which makes moving pieces harder.
Most players should save their moves for when they really need them. Look for clusters that can clear entire rows or columns.