Amine Ben Hadj Ali
Ansys Employee
if I were a decision maker that will be a very bad decision if I start now supporting Windows 8.1:

Microsoft will begin Windows 8 and 8.1's end of life and support in January 2023. This means it will stop all support and updates to the operating system. Windows 8 and 8.1 already reached the end of Mainstream Support on January 9, 2018.