Yeah, I loved DDR as a teen but decades of apartment living made it a no-go. I had a house built in 2021 and after a bad elbow injury put me off weights for a year I needed something more interesting after my treadmill died. Wife reminded me of DDR and I dove back in.
I use ITGMania with an DDR-based frontend and have it on my Steam Deck to dock to the TV. Zenius-vanished forum and stepmaniaonline.net have a huge mix of both the original stuff and user made SM files.