It's been a few months since I stopped using anything with infinite scrolling, and life has been great.
I feel like a brain-dead zombie while scrolling on these apps. My brain gets foggy afterward, and I don't even feel good about the time I just burned. Now I've got more time in my day for things that don't make me feel shitty afterward. The time spent doesn't even have to be a productive activity; even just watching shows is more enjoyable. So I wouldn't consider this a productivity improvement, but rather a health improvement.
I also cut social media out of my life, which is also very enjoyable. Now:
Highly recommend y'all to try it out too!