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Yes according to service manual Powermore engines do as do most engines. Even very old engine had bump or ramp decompression grinds on the camshafts. The only engine without them is usually the ones with hydraulic lifters.
Have replace quite a few 793880 camshafts on Briggs engines due to ACR failures. But I just replace one that the exhaust lobe was nearly completely worn round, a first for me to in 10 yrs and it didn't have a broken ACR. Saving that ACR for later use. I actually keep or two 793880 in stock all the time now just because of the ACR failures.
Have replace quite a few 793880 camshafts on Briggs engines due to ACR failures. But I just replace one that the exhaust lobe was nearly completely worn round, a first for me to in 10 yrs and it didn't have a broken ACR. Saving that ACR for later use. I actually keep or two 793880 in stock all the time now just because of the ACR failures.