The effect appears to be pretty small, even when drinking 6+ cups of coffee/day. It's also not clear that this increase in cholesterol is unhealthy, considering cholesterol has a positive (and necessary) effect on our bodies and not all cholesterol increases risk of heart disease.

Coffee still shows an inverse correlation with all-cause mortality[1].

1. https://www.ahajournals.org/doi/10.1161/STROKEAHA.120.032273....