The PS90 reportedly breaks stocks. I have one, but do not suppress it.
The AUG has a lot of gas port noise suppressed. Mine is a pinned and welded factory 14" with a custom drilled gas plug for suppressed. What it needs is a custom gas plug with smaller inlets versus bigger outlets. I used to have ambitions of modifying one, but the other ports are in bad positions to do so. Manufacturing a new gas plug for this purpose is beyond my interest at the moment.
The Tavor and X95 are too gassy unsuppressed for me to even consider. I sold my Tavor, kept the X95, but had to pin and weld the muzzle device to run the short buttpad. Suppressor adapter muzzle devices are often too large to pin and weld as the forearm has to fit over them.
My biggest hopes are on the Fs2000 as it has replaceable gas screws and no exposed near the ear ejection port. I have the gas screw assortment, but still need to send out the barrel for shortening, threading, pinning and welding. So, I have nothing to report yet.