I flew Yul- Fra and then on to DXB. Arrived in FRA and did not need to leave the secure area.
Not sure if this is what you are talking about or not. {I only fly intl 4 times per year so don't keep track of this }
I flew YYZ-MUC-MAD over the weekend and was unleashed directly into the H departure terminal (non-Schengen) from whence I proceeded to the Schengen area (G gates) with the usual cursory passport check but without having to trudge through the security line.
A tiny bit disorienting at first if you are used to the "old" routine, but very quick and efficient for transfers. ^