No, standard velocity .22 is slightly supersonic, at least in a rifle...
(I suspect that the issue of suppressors is rather Churchillian, as never have so many who know so little expressed so much that is so wrong with so much confidence).
If you is, you is. And a sonic crack is a sonic crack.
I've actually been out in a perfect test situation. Calm cold day, no wind, fresh snow on the ground. With a .22 rifle firing .22LR at a nominal 1050fps, the rising temps actually caused the speed of sound to cross the threshold. The difference with and without sonic crack is stark. The "slap" of a .22's semi auto bolt is negligible. I've also fired 9mm both super and subsonic with quality suppressors. Take away the crack, that's a big difference. Bolt slap? Hardly anything. What is overlooked by folks (including Hollywood types) who imagine suppressors is just how frikkin loud it is when your bullets are hitting a car or a wall. Because most people don't have experience with suppressors (including Hollywood types) they never notice the impact noise, since it's usually not noticeable over the muzzle blast (unless you are shooting steel plates at long range, and there is a significant time delay.) You can suppress a submachine gun's muzzle blast, but let me tell you, shooting up a car at close range makes a racket! "Bolt slap" or whatever is still much less than even suppressed muzzle blast. The centerfire ones I've used are at least as loud, suppressed, as a very loud hand clap, or dropping a big textbook on a floor. Depending on where and when you are shooting, such a sound will not be noticed. But it sure sounds loud to the shooter at midnight. And the Hollywood types, as I've said, are completely ignorant about how damn loud it is when bullets crash into a car or a wall, never mind the suppressed muzzle blast.