Three different things that look the same
Dehydration. The plate feels bendy and the surface looks slightly white and chalky, evenly, across all ten. This is not damage. Acetone strips oil, and a plate that has been soaked for thirty minutes takes about a week to recover. Cuticle oil twice a day fixes it and nothing else is required.
Surface damage. Peeling in thin layers from the free edge, or visible rings of thinner plate around the cuticle. This is mechanical: an e-file used on the natural nail, or a set pried off. It grows out, at three millimetres a month, and it looks worse at week three than it did on day one because the thinned section moves forward into view.
The growth cycle. Your nails were always this thin and you have not looked at them bare in eight months. More common than anybody admits, and the reason we look at bare nails at the first appointment rather than taking a description.
How to tell, quickly
Look at the cuticle end. Damage from a drill shows as a ring or a scooped dip a few millimetres up from the cuticle, in the same place on every finger, because that is where the bit sits. Nothing else produces that pattern.
Peeling that starts at the free edge and works back, with no ring, is either dehydration or the plate you always had.