Scarpa T2 telemark boots give me comfort and control both up and down, super comfortable and they last forever. I've been skiing the same boot for 14 years. I've had to replace a few buckles and that's it. They don't require a custom fit either - just a decent off-the-shelf footbed.
I have old school simple telemark cable bindings - no NTN for me. The Voile Switchback X2 telemark binding is very similar to what I have. Simple is good. Field repairs for these bindings are simple. I can herringbone and side step with ease and control with these bindings and flip the bales up for steeper ascents.
Do use a leash between boot and ski:
https://www.telemark-pyrenees.com/22-designs-coil-leash-2
Always a fan of 22 Designs telemark bindings as for when I used to do resort downhill telemarking.
You absolutely can mount an AT binding, but will not get the same the beautiful slide and glide - even on modest uphills that you get from a telemark setup.
As I mentioned, I've been using this setup for 14 years and never made the adjustment to NTN bindings. I've heard they're easier to learn on and certainly easier to step into. I prefer the elegant and powerful look and feel of the old school deep knee bend telemark turn that my spouse makes look effortless.
When I moved to UT, I tried to switch to AT and despised it. I spent a bloody fortune, tried it once, and said oh hell no. It felt super clunky, slow and slower on the uphills and honestly the binding was technical and hard to use and was clumsy getting in and out compared to the simple free heel stuff.
The baffle in the front telemark boot allows for more natural movement - far easier on the feet. With the taller cuff of the Scarpa T2, I have very good downhill control on lower angle terrain. But it can't match fixed heel for downhill charging steeps -- unless you're an adept telemark skier. I am not. I'm so-so. But since I ski lower angle, I can manage well off piste making parallel turns. (Gotta lift your toes and press the heels to avoid the superman.)
My daily backcountry Nordic ski is Fischer S-bound 98 (at the shovel)
https://www.fischersports.com/s-bound-98-crown-dual-skin-xtralite/N52523 (I don't have the version with the skins) and my Scarpa T2s.
It's more boot than is needed but I've never felt like it overpowered the ski and I love the stability and power I get from the taller boot.
These are perfect for combination of groomed expert Nordic trails and venturing off trail. The Voile Vector is my deeper powder trail breaking ski.