When undergoing a diet, you mention that it is key to maintain intensity, ie weight on the bar in order to maintain LBM. How does this apply when cycling to a different rep range.

IE. For 4 weeks you are emphasizing strength and by week 4, you max out around 185x5reps/4 sets.

Next week you are switching to hypertrophy and would like to get at least 6 reps but ideally 8.
How could you increase your reps with the same weight? Or would you reduce weight to say 175 and try to get 8 reps? Would that reduce muscle?

Similarly going from hypertrophy to strength would you reduce reps, and keep the weight the same (keeping weight on bar intensity) or add weight while reducing reps?

Thanks in advance.