Thanks for enumerating. Having used Macs since System 5, I'm definitely more accustomed to ⌘O for Open across applications, including the Finder, but I can understand how muscle memory can be hard to rewire. And while I'm sympathetic to the frustrations of learning the idiosyncrasies of a new system, I'm sure you recognize memorizing (new) shortcuts for applications independent of platform is something is par for the course.
If these are true sticking points for you, I'd suggest taking a look at the Finder alternatives again. I wouldn't be surprised if the Show in Finder feature isn't overridden in these environments. I can't imagine that the points you've listed are likely to be changed in Finder: they're behaviors that have existed across many, many versions.
If these are true sticking points for you, I'd suggest taking a look at the Finder alternatives again. I wouldn't be surprised if the Show in Finder feature isn't overridden in these environments. I can't imagine that the points you've listed are likely to be changed in Finder: they're behaviors that have existed across many, many versions.