Hi ,
Changing exercises every other week seems exciting...
due to novelty.
But.
It also wipes the fingerprints off your training log.
You can't see whether your reps, load, or control are improving when the movement keeps changing.
A 2022 systematic review of 8 studies found that exercise variation can influence strength and muscle growth. The authors' conclusion was: systematic variation may help, while frequent random changes may compromise progress.