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I worked on a few pretty tall steel frames buildings in the City and those impact wrenches we're awesome for hundreds of bolts a day.
I'm sure the steel erectors would lend you one at tea break, and give you a bit of time with the tower crane, to get the kids playhouse knocked up.
But that Bosch ixo is the better tool for the job.
10 years ago when I was supervising large scale solar installs I bought a set of 10.8v dewalts for the light duty frame and mounting brackets, but over the years they've been co-opted for 2 loft floor raises, 2 garage rack outs, construction of one flat pack shed and most recently my self build.
An 18v impact would have been overkill for much of the work.
You are right, philips were designed to cam out rather than over torque for use with early mechanical drivers on assembly lines. Getting on for 100 years ago which is pretty impressive. Of course they have their place, like all things, but for me at least, they have no place in modern general construction, with modern tools as they aren't suitable by design.
Some people aren't aware of the difference between phillips and pozi. Let alone Torx. Was just wanting to give people an awareness of something perhaps more useful as camming out was mentioned, and not in a useful way.
Interesting to note that drywall/plasterboard screws are still Phillips, no doubt for the fact that they do cam out, which is useful in that scenario.
Everyday is a school day. I still enjoy that.