2020 Mazda CX-5

The front seats, both electric and manual powered are rocking back and forth. Upon acceleration both seats will slightly rock backwards and then upon applying the brakes they will rock forward. It's almost like whatever is holding the seats still has a defected part or a defect somewhere else. This concerns me as a safety issue, if something were to happen and if I got into an accident, aren't the seats supposed to be secured and not have any slack or rocking in them? This has happened before on my driver side seat when I had a mazda service technician look at it he confirmed it needed to be repaired. For a whole replacement seat was estimated around $4,000.00. I was fortunate at the time to where my bumper to bumper warranty helped cover some of the cost, Mazda agreed to pay for the "parts" to fix the issue and I paid for the labor, only because I was slightly over the 36,000 mile warranty that comes with Mazda. Since the repair I was told it wasnt going to be 100% and I would still have some rocking but it wasnt as bad, that occurred around the year 2022. Now, when I have a passenger the same thing occurs. Unfortunately, I'm no longer in my bumper to bumper warranty and quite frankly this seems like a safety risk that Mazda is aware of.