huge drift here....
Let me try to answer the actual question for the OP.
Sounds like you will study the POH for the new plane. Great! Cessnas are pretty easy and straight forward across the board. Your instructor should show you the flows.
I, like the OP, flew primarily my own 7ECA for several hundred hours before transitioning into trikes, which just happened to be a 172.
As an experienced instructor, here are my three tidbits about your transition;
1. you will make ALL your landings in what you would call a 3-point landing in a tailwheel, This is the sight picture you want, then hold that picture as your plane decelerates and the nose settles down to the ground. Nose wheels will shimmy just like tailwheels if they hit hard and fast, especially in the older worn out planes. Also, When I transitioned..... I may have dragged my tail thinking there was a tailwheel back there! haha. Keep that in mind! I might be the only monkey to do that, but I doubt it! seeing as the flight school planes had thick UHMW on the bottom of the tails for a reason.
2. The plane you may be flying may have 40* flaps. My recommendation is to not use all 40* until you have some time getting comfortable with the plane. 30 is more than enough, such so that Cessna did away with 40* in newer planes. It's a lot of drag that the plane may or may not be able to fly with if you needed to do a go around or aborted landing. Get your go-around flow down first.
3. Lastly, and this is retract specific..... don't do "touch and goes". Do full stop-and-taxi back, or full stop-and-goes if you have enough runway. I used to be against this for the sake of efficiency, but I've seen several very experienced pilots and very experienced instructors not fast enough, have the plane fall on its nose. The squat switch, or weight on wheels switch is on the nose gear on a 172RG. And on a tough-and-go, the nose gear is light on the ground, and the pilot inadvertently moves the gear into retract instead of the flaps, and the nose gear tucks FAST, and down you go on the cowling.
There is more than one way to skin a cat. These are just a few of the foundations that I teach, once the student has a handle on things, I start to introduce other techniques. But we have to start somewhere.
Hope this helps.