I used to carry one in my toolbox when I worked as a network field tech.
I'd argue my quality of life is higher for using only hand-me-down phones (current one is ~8yo, thanks to LineageOS) because when I'm feeling dysregulated I run out of phone-based distractions really quickly (I don't allow JavaScript, and I don't install any games). I'm healthier for walking and cycling everywhere within ~16km of home (privileged to live in the city, as expensive as it has become, but I'd still do it if I lived further out), and for using heating & cooling only to take the edge off the outside temperature (16C in the winter, 26C in the summer), mindful of where all this energy comes from, what the effects are at scale, and the quality of life of future generations long after I'm dead. I don't do all this for efficiency, but for effectiveness (that of my body, my default mobility and data-processing machine) and consuming a reasonable amount of energy rather than one that, at scale, will burn my house down.
Regarding not-yet e-waste, some people just like tinkering, and the challenge of getting old hardware to still function as a useful tool.
I also understand the reaction to other people's "nonsense"; I sometimes go there, too, and it's an ongoing effort to reel it back to what I can reasonably control.
Is it helpful to have all this spelled out for you?