They most certainly do!
We have had two CAT thefts from our car park (B&Q) in broad daylight, both were colleagues' car (not Lexus) working here. One has sold his car to go EV the other simply replaced the missing part, which somewhat amusingly wasn't his CAT but a centre resonator!
It's something I'm aware of but as has been mentioned if the want it they will take it and I'm not living in a constant state of worry.