Just to show that it's not just the 4060 that's disappointing, here's how the 4060 Ti fares against the 2060 Super and 3060 Ti:
View attachment 89096
So the same improvement (~50%) over the 2060 Super as the 4060 has over the 2060, but the increase against the 3060 Ti is smaller than the 4060's over the 3060.
Gen-vs-gen (1080p)
2060 to 3060 = +27% avg
2060 Super to 3060 Ti = +42% avg
3060 to 4060 = +15% avg
3060 Ti to 4060 Ti = +9% avg
Gen-vs-gen (1440p)
2060 to 3060 = +38% avg
2060 Super to 3060 Ti = +43% avg
3060 to 4060 = +10% avg
3060 Ti to 4060 Ti = +6% avg