Trying to say this without being preachy or snarky. Forgive me if I fail.
The Ramp test is already significantly flawed for estimating FTP. Trying to game the system by pushing extra hard, digging extra deep, to get a great Ramp test result and a higher (but not real) FTP estimate is not what you want to do. Save that type of full gas effort for competition. Or a Strava KOM. Or for putting your buddy in the hurt locker on the next group hammer ride.
Testing is Training. For the Ramp you want a good effort that is representative not of your absolute best effort that cannot be repeated, but a result that is going to guide your next block of training. Just do the test as a hard effort, take the FTP number and train. Adjust up or down if needed (or let AT do it for you).
More specifically, there is a reason people advocate for longer tests. 45-60 min, TTE tests, etc. Once you know how that feels and can test well, those are much better indicators of FTP / MLSS.
That said, there is nothing wrong with killing yourself on a Ramp test to see what you can do if it makes you happy. But be careful using that number in training and calling the output your “FTP”.