If you 'lie' about the gpu capture, Gamemanager and Database Manager will try to record it via gpu driver. If the hotkey doesn't create a video, it just fals back on ffmpeg gdigrab.
EDIT: just tried and this is what the log files displayed, If you enable GPU driver capture, but the GPU isn't setup, or doesn't support it
07:08:28.06 26-9-2020: Waiting for playfield capture thread
07:08:34.53 26-9-2020: Playfield capture driver failure
07:08:34.54 26-9-2020: FFMPEG.exe -f gdigrab -framerate 30 -offset_x 0 -offset_y 0 -video_size 3440x1440 -t 00:00:20 -i desktop -c:v h264_nvenc -an -preset lossless "c:\users\mike\appdata\local\temp\tmpede6530852222.mp4"
07:08:34.83 26-9-2020: FFMPEG.exe -f gdigrab -framerate 30 -offset_x 0 -offset_y 0 -video_size 3440x1440 -t 00:00:20 -i desktop -c:v libx264 -crf 0 -preset ultrafast "c:\users\mike\appdata\local\temp\tmpede6530852222.mp4"
07:08:55.44 26-9-2020: FFMPEG.exe -i "c:\users\mike\appdata\local\temp\tmpede6530852222.mp4" -vf "vflip,hflip" -c:v h264_nvenc -an -rc vbr_hq -cq:v 31 -b:v 0 -pix_fmt yuv420p -f mp4 -movflags +faststart "C:\Pinball\PinballX\MEDIA\Visual Pinball\Table Videos\250cc (Inder - 1992) (2).mp4"
07:08:56.06 26-9-2020: FFMPEG.exe -i "c:\users\mike\appdata\local\temp\tmpede6530852222.mp4" -vf "vflip,hflip" -c:v libx264 -an -crf 21 -pix_fmt yuv420p -f mp4 -movflags +faststart -c:v libx264 -an -crf 21 -pix_fmt yuv420p -f mp4 "C:\Pinball\PinballX\MEDIA\Visual Pinball\Table Videos\250cc (Inder - 1992) (2).mp4"
07:09:36.48 26-9-2020: Playfield capture success