I read things like "staying on target" (sounds like a very good thing), "noise", (less important), "blast signature" as far as not blowing dirt on you/rifle and not directing it at you, but more sideways/a hair forward. (Sounds like some brakes could be very annoying).
Recoil reduction for staying on target is critical. Most shooting will be done 500-800ryds, the shorter of which, a big recoil response will push you off of target so you don’t see your impact, which robs you of IMPORTANT feedback. Every shot you fire is not just a point, but it’s an opportunity for feedback to help you land the NEXT shots on target. Even a 308win shooter will be back on target before a 1000-1200yrd shot gets there, but you’ll wanna be able to see trace whenever you can. For shorter shots, especially Positional shots where you might not be as solid as you’d like, it’s hard to see your impacts if you have a lot of recoil.
Noise sucks, but you have ear pro, and you’ll rarely be on the line beside another shooter. Most of us run brakes, maybe 1/3 run suppressors, nobody except the newbies with some hunting rifle run bare muzzle. The noise increase to the shooter isn’t relevant - the benefits absolutely outweigh the slight annoyance.
Blast signature isn’t really a concern either. Half of your shooting will be Positional, and a lot of your prone shooting will be done from platforms. When you go belly down, it’s rarely if ever in dirt, worst case gravel. At every match I have shot, SOMEONE brings a mat, back yourself up a little and put the muzzle over the mat. I always take my mat, about 1/3 of the time my squad uses mine, the rest someone else hauls theirs around. It’s not so uncommon for matches to provide them on stage either. That’s not to say you won’t go prone on grass or dirt, but you will be able to use a mat if you want. By nature of their design, any of these brakes aren’t venting straight down, so the dust disturbance is pretty low. But I wouldn’t give up any recoil reduction with the thought of dust mitigation in mind.
I will say, at a LOT of matches, your rifle is going to get dusty. What happens during a stage of two of prone on the ground is minimal compared to the dust blowing around the range. Your rifle is going to get banged around into obstacles and port holes, fired from muddy grass (or mud, period), slung around in the rain, etc. It’s a full contact sport for your rifle. Expect paint transfer from obstacles, scratches, mud, grass, etc.