Maybe if we were talking about social media or some other non-essential service on my phone, but the phone itself is hard to do without because of its practical utility, not because of addiction.
I think another thing to consider is having ways for people to reach you _without_ your cell phone. For instance, I have a home phone, and calling my cell also rings that home phone. You could set up something similar if you have an office phone, or using a softphone on your desktop. That leaves you with instances where you leave home or the office, which are honestly cases where I'm personally least likely to look at my phone because I'm usually doing things that occupy my full attention (unless I'm commuting where I'm often reading a book on my phone).
And phones are much more than content consumption machines - I like having a little pocket camera with me in case a see a new cat in the neighbourhood or something, and looking up bus schedules, renting city bikes, calling a cab, etc. are things I all but need to be able to do when I'm out.
My trick to almost never looking at my phone has been, somewhat ironically, having a smartwatch, as well as carefully curating the notifications I get on my phone. If I know I can't miss an important notification, I'll never even look at my phone, so there's no chance I even see one of those time wasting apps. And when a notification buzzes on my wrist, I can see in a fraction of a second if it's something really important or if it can wait.