[mzhaase]

First of all one should continue linear progression (adding weight every session) for as long as possible, by using microplates (125g increment). This is still the fastest way to progress.

Once that does not work anymore, one leaves the novice phase by definition and is now considered "intermediate".

Eric Helms wrote a metaanalysis of the current state of exercise science in "The muscle strength pyramid". In that, the recommended periodization for intermediate lifters is "wave loading". So one would do 3x8 at weight x, then 3x7 at x+5, 3x6 at x+10, 2x6 at x (DeLoad), then 3x8 at x+5. All sets performed at RPE < 10, meaning, one could do at least one more rep.

The rep ranges and weights here should be modified to suit the goals at hand, so for deadlifts the increase may work, but for overhead press it should be lower. If training for strength the reps should also tend to be lower.

Also, technique gets more important at higher training ages. It's worthwhile to drop the weight if it increases ROM or the stretch at the bottom, as it leads to more muscle growth this way.