Bruce and Jur.
From the early days of Mountain bike suspension there is a simple way to eliminate pedal induced bob. The rear wheel pivot needs to line up with the top of the chain line. When the pivot is at the BB the pressure down on the pedals pulls the suspension causing it to "BOB". This was tough to do with the wide range of chain lines on a mountain bike triple. Very easy on a road bike single front chainring.

This picture is the classic folding bike suspension that has Huge pedal induced Bob.

In the mountain bike world they have gone to floating rear ends and mobile pivots to get big travel without bob.

In the folding world they always want to make the pivot the fold under which puts it in the position to maximize pedal induced bob. The F frame is horrible for that. It's saving grace is minimal travel.