I have to agree. At my gym, the people who seem to track their training mostly use paper notebooks. Even the younger people who otherwise live on their phones or post instagram videos of all their lifts. I don't notice many people using apps. Though it can be hard to tell, because e.g. a smart watch may be tracking some things automatically, or an app may have computed the workout in advance.

I personally don't track anymore. I was using a Google Sheet on my phone but it didn't really seem to add any value. Now I just remember what my reps and weights are for the main lifts I do.

Funny you say that. I tried tracking with a journal for 2 months, and it was just cumbersome to add it to the things I bring to gym (water bottle, earphones, wallet and phone). I eventually gave up in remembering to bring it, and just went back to logging on my phone

Haha, I love this. I went to Seattle recently and went to a stationary store. I bought a 150 dollar pen (yikes!). But oh my god, writing with it brings me so much pleasure. (I felt the same thing after moving from a 20 dollar Logitech keyboard to a 110 dollar lofree, it brings so much joy to use a excellent tool)