Not really.
When I play without a ramp my finger hits the string at about 45 degrees. So not flat with the board like a plectrum would, and not a vertical impact like slap.
A ramp changes the angle of attack - it's like pulling your finger across a flat surface and there just happens to be a string in the way. It's very much a horizontal interaction with the string. If you look at different players fingers, without a ramp the plucking finger comes to rest against the next string, sometimes causing a bit of a thump and the joints are all are gently bent.
With a ramp the next string doesn't need to be touched at all and the finger geometry is a bit different (for me anyway) in that the proximal phalanx stays straighter with the main part of the hand, and the middle phalanx bends down more to allow that more horizontal movement.
It does need a bit of technique adjustment - just hammering away like Steve Harris won't work with a ramp - the angle of approach to the string is different.
It's easy to try - bit of old smooth wood and double sided tape. Don't worry about curving the top, just get the idea. It's definitely not for everyone, but I like it.