Are bottlenecks fine

Im looking at a pc with a 5070 and an intel i5 14400f, on a bottleneck calculator website says on 1920x1080 it has a 20% bottleneck and on 2560x1440p it has a 10% bottleneck, im wondering are these stats true and do they actually effecting pc use/gaming, also should i switch 14400f with intel ultra 5 225f