**Explanation:**

The question asks us to identify the incorrect match among the given options. Let's analyze each option and determine their correct molecular shapes.

**A. XeO3 - Trigonal Bipyramidal:**
Xenon trioxide (XeO3) consists of a central xenon atom bonded to three oxygen atoms. The electron geometry of the molecule is trigonal bipyramidal because there are five regions of electron density around the central atom (three bonding pairs and two lone pairs). However, the molecular shape is not trigonal bipyramidal. The lone pairs on the central atom repel the bonding pairs, causing a distortion in the shape. Therefore, XeO3 does not adopt a perfect trigonal bipyramidal shape.

**B. ClF3 - Bent T-Shape:**
Chlorine trifluoride (ClF3) consists of a central chlorine atom bonded to three fluorine atoms. The electron geometry of the molecule is T-shaped because there are five regions of electron density around the central atom (three bonding pairs and two lone pairs). The molecular shape is bent because the three bonding pairs and lone pairs repel each other, causing a distortion from the ideal T-shape. Therefore, ClF3 adopts a bent T-shape.

**C. XeOF4 - Square Pyramidal:**
Xenon oxytetrafluoride (XeOF4) consists of a central xenon atom bonded to four fluorine atoms and one oxygen atom. The electron geometry of the molecule is octahedral because there are six regions of electron density around the central atom (four bonding pairs and two lone pairs). The molecular shape is square pyramidal because the two lone pairs cause a distortion in the shape. Therefore, XeOF4 adopts a square pyramidal shape.

**D. XeF2 - Linear Shape:**
Xenon difluoride (XeF2) consists of a central xenon atom bonded to two fluorine atoms. The electron geometry of the molecule is linear because there are two regions of electron density around the central atom (two bonding pairs). The molecular shape is also linear because there are no lone pairs to cause any distortion. Therefore, XeF2 adopts a linear shape.

**Conclusion:**
Among the given options, the incorrect match is A: XeO3 - Trigonal bipyramidal. Although XeO3 has a trigonal bipyramidal electron geometry, it does not have a perfect trigonal bipyramidal molecular shape due to the repulsion between the lone pairs and bonding pairs.