Owning a bunch of rimfire suppressors along with 20 plus years of suppressor use/ownship myself Engineer is on to something with his questions in his above post. There's not a one size fits all suppressor. Some are better on a pistol,others on a rifles, some middle ground on both. Size,length,weight,ease of cleaning and type of host all play a huge part in picking the right model not just performance specs alone.
Right now for a do it all suppressor today the most common are Mask or Spectre II, both perform great on rifle and pistol plus and clean easy. I tend to favor the Mask just like it's shorter length and construction.
Pistol only I still like the Element II best it's crazy quiet and more compact size/lighter weight. Personally, I still think the Element has less FRP than my Mask or Spectre II shot side by side on matching 22 pistols. Just because new stuff hits the market and becomes the "in thing" does make it unseat the old King performance wise the elements K baffles are just super effective. That said the element requires more frequent cleaning so for high volume shooting I would perfer the Mask for ease of cleaning. I have a El Camino on order I'm hoping it with turn out to be a good lite-weight/quiet pistol can for me also.
Rifle wise for range work or sport shooting there many models that sound great on a rifle with zero to low FRP and easy cleaning. Most folks rule on the Sparrow SS because it does has FRP on a pistol that said on a rifle it's silly quiet and ultra easy to clean. If you add a few drops of water to the Monocore suppressors like the sparrow, GM-22, Regulator they are nuts quiet on a rifle and it wipes out FRP on pistols fired wet. My GM-22 wet sounds noticeable better than my Mask dry on a handgun FRP wise.
That surprised me because dry the Gm-22 has loud FRP on a handgun. Yes I know that's dry to wet not a fair head to head, but I don't mind shooting the GM-22 wet because it's so easy to unscrew and wash right out after shooting. I don't like shooting my Mask wet because it makes more of a mess inside and the baffles tend to stick/get harder to remove at cleaning time.
For hunting, back yard shooting and low volume type shooting cleaning isn't huge deal you should focus more on first shot FRP since you will often just fire one shot.
Range type shooting better look for a high volume, easy to clean model.