The floor mat XL (156.5 x 68 cm) from Playseat is large enough to fit under the Playseat Evolution. The dimensions of the floor mat (156.5 cm long and 68 cm wide) should be sufficient to cover the area under the racing seat, as the Playseat Evolution itself does not have any specific requirements for the size of the floor mat that go beyond these dimensions.
According to the specifications, the mat measures 165.50 cm long and 68 cm wide.
The F-GT has dimensions of 170 x 60 x 100 cm, GT 140 x 60 x 125 cm. It would therefore only fit in the GT position and would not fit in the Formula position.
I myself use the Playseat Sensation PRO for the mat, which according to the manufacturer has a dimension of 120 cm x 80 cm and yet it doesn't fit over the mat; which you might actually think as the stated width is only 68 cm.
Do you have a carpet in the whole room or do you have a small rug? You don't necessarily need a mat. A mat is easier to replace than a carpet in the whole room. There are also floor protection mats for office chairs and fitness equipment. Whether placed directly on the floor or on a carpet, the mat protects against damage and wear.