~250 games testet, about 90% worked without issue.
Some games were hard coded to avoid Intel graphics and would use the AMD iGPU by default (even a newer title like Alan Wake 2 did this), but after disabling the iGPU, most of those were fine.
I think like 10-15 games didn’t work at all or had basically unplayable performance, maybe a few more with graphical glitches, some minor, some more noticeable.
I gave FFXIII 3 shots, putting in over 40h in total. The farthest I got was about halfway through, two years ago. I hated the game so much, that I actually stopped playing games altogether for like three months. It was completely miserable. I’m a certified FFXIII hater.