And, unless they've changed, used to be when the pads were shot, so were the rotors and drums.
https://www.handymanxchange.com/ceramic-vs-semi-metallic-brake-pads-vt185.html
Lots of conflicting exchanges concerning them on-line.
Almost all say the rotors and drums must be compatible.
No one really know how to tell, other than check with the OEM vehicle manufacturer.
Most seem to say new rotors before you slap the pads in.
Put them on my wife's car, and nothing I can do can get rid of the squeal.
It's finally after a year or more settled down to "occasional", but not what you'd call happy with them.
Not sure of the pressure needed....I know on old drum brake US cars, put the non-asbestos stuff on, two boots on the pedal won't stop it.
Had to go with softer A-B lining, that did it.
I remember when General Misunderstanding started in with them...and thinned the rotor and drums up (to save weight and get better fuel economy), it was new rotors and drums every brake job.