To see an amazing example of this, check out the smartknob project: https://github.com/scottbez1/smartknob
It's not a mechanical keyboard switch, anyway. There's nothing to click. No moment when the force required decreases.
These keyboard enthusiasts should look into making replacement car dashboards. Something tactile to replace those awful touchscreens that keep people's eyes off the road.
According to your definition about point where force decreases -> half the mx keyboard switches are not mechanical because they are not clicky and have linear force curve without buckling point, but the rubber dome keyboards are "mechanical" because they have a point where dome buckles and force decreases.
If you look at the nature how the electrical contact or signal is made. Again rubber dome keyboard actually mechanically connect and disconnect the electrical contacts. But the few commercial "mechanical keyboards" using optical or magnetic switches which from the mechanical construction is almost identical to "real mechanical keyboards" would fall on the other side of split.
That said there is some use in classification of switches outside the context of keyboards based on whether they have any moving mechanical parts, or whether they contacts which get connected/disconnected during use and could increase resistance over time or spark in case of higher voltages and currents have their use in certain situations.
The advantage of auch a thing is that you can type them silent if you like. More silent than a typical laptop keyboard in fact. Being someone who does audio recording a lot this was the selling factor for me.
The lack of click is actually quite fine, I have no problems with it. You still have the spring you push down, so gaining a feeling for "when you hit it" is not that hard.
What you describe is called “tactility” and there is another DIY magnetic switch design that offers it, using three magnets instead of two:
https://hackaday.com/2022/01/17/3d-printed-magnetic-switches...