With changes in WINE and Photon added to ReactOS, it could be playing games. It could be using more modern Windows programs. Notice it is still in alpha release.
ReactOS does incorporate development from WINE, but there's a lot more work required to get GPU drivers working reliably, especially at full performance.
30 years of ReactOS: https://reactos.org/blogs/30yrs-of-ros/
With changes in WINE and Photon added to ReactOS, it could be playing games. It could be using more modern Windows programs. Notice it is still in alpha release.
ReactOS does incorporate development from WINE, but there's a lot more work required to get GPU drivers working reliably, especially at full performance.