I wouldn't overthink it too much. You could research the heck out of this and then land at your first airport, park at a remote stand, and get taken on a bus to a different area of the terminal than you'd planned. Airport diagrams might show all the gates and airlines, but aren't clear on where exactly international arrivals/transfers have to go.

If you have a particular connection of concern...multi-airline, a little on the short side, then it's certainly worth looking into. Other'n that, just follow the signs and then look at a map for your lounge when you get to that point.