Sort of related, but I switched from an iPhone to a Unihertz Titan with the goal of reducing smartphone screen time. Ultimately switched back to iPhone because I found that remaining connected to my social circle necessitated an iPhone. Of course, YMMV.
I switched from using an iPhone to something far less “smart” for about 3 months. Here's my experience.
tldr: I found that not using a smartphone is a lot more pain than gain. It's more rewarding to train yourself to use it wisely than not use one at all.
Thanks for checking it out!