Record desktop at 1080p60 in high quality
Try lossless encoding with ffmpeg

First, with YUV444P

ffmpeg -f gdigrab -framerate 60 -i desktop -crf 0 -pix_fmt yuv444p -preset ultrafast yuv-cap.mp4


If not clear enough,

ffmpeg -f gdigrab -framerate 60 -i desktop -c:v libx264rgb -crf 0 -pix_fmt bgra -preset ultrafast rgb-cap.mp4


These will likely not be compatible with most video editors, but if the result is satisfactory, then you can transcode at leisure to a compatible codec like PNG in MOV..etc

You can add -draw_mouse 0 before -i desktop to skip recording the cursor.