IF you have a deadbolt on top, an un-keyed lever below, and the mortise cylinder where you insert the key lines up with the bolt, then it’s very similar to my setup in my last apartment.
What I did won’t work on other mortise setups where the bolt is much lower than the cylinder (mostly commercial doors like this Yale mortise.
I was able to pop the old cylinder + deadbolt out of the mortise, and replace with the the Schlage Touch with Handleset, still using the original mortise. It does change the outside appearance since it has the touchscreen, but you might be able to get a similar set up with a separate smart deadbolt and lever.