Hey there. I don't recall interacting with you in the past, but this is a great thread MumbleFratz. I'm /way/ younger than you, but one of the things that I've learned during my time here on earth is that life is far too short to learn from one's own mistakes and experiences. In order to adequately navigate the world one must be able to learn from the experiences, mistakes, and wisdom of other people as well. So I appreciate your perspective.
I've gone back and forth on the moble-phone idea myself, as I've also seen how they (and beepers/pagers before them) became tools to tether individuals to obligations (they do not want to have), rather than tools of convenience or liberation they are originally presumed to be when their uptake by society is on that exponential curve upwards. Already I see inklings of the protected and privileged classes (people with enough education/prestige/wealth to be able to say "no") stepping away from phones/tablets/etc because of the broad recognition of the trade-offs inherent in their dependence upon these devices (and potential harms of this dependence). Thus, while a mobile phone was a status symbol 15 years ago, the ability to ignore calls and turn off the phone is quickly becoming a status symbol over the next 15 years.
If you're interested, there is a lot of academic literature on choice, self-binding, second order preferences, etc with respect to individuals and how they choose to give-up or limit things that they like, but are potentially harmful in excess. I would place mobile phones into this continuum myself, personally. My phone doesn't ring if anyone I don't know calls, I get no beeps, boops, or other alerts at all. I do not use it for personal email, I keep virtually every convenient service on it turned off, have viciously eschewed any apps or games that are not strictly necessary (for security, being the main reason, but I find the idea that any app adds much utility fairly dubious) and generally keep it tweaked for minimal addictiveness... One thing that I will say though, is that phones are INCREDIBLY useful while traveling, although the joy of getting lost is an experience quickly on its way to extinction in the present day...
If I may. What I feel like you're attempting to put into words, but are falling short on the specific language and terminology to succinctly do so is that there is no innate quality of technology that makes life /better/. This is an idea that's been seeing a lot of resurgence as each subsequent generation that's followed your Boomer footsteps has found itself to be increasingly impoverished (Gen-X, the Millenials, then Gen-Z or the Homelanders (the name is still being debated, I think it should be "Generation-F" myself)). What these generations have been increasingly questioning is the "Myth of Progress" and are increasingly coming to the conclusion that the "Progress" and the ideas of Techno-utopianism are actually just religions. Religions both of belief ("all new technology is better than what it replaced"), as well as of practice (consumerism). And like many Religions, many of these precepts have been hijacked by powerful interests, despite being of a questionable infallibility to begin with. The precepts that made this belief system "work" were largely predicated upon resource abundance - which is now transitioning to resource scarcity; if not on absolute terms, certainly on a per-capita basis..
This post wasn't meant to be about religion, but rather, that this idea is so pervasive and so entrenched that the only appropriate terminology with which to describe it is that of something equally pervasive and entrenched in human history, which are religions.
You might quite like, and find a lot of resonance in the writings of John Michael Greer - he also has a ton of book interviews on Youtube. For example: here is a post he wrote about razor blades and how no one can get a decent shave anymore (just like your observation that mobile phones are so convenient that you can't even hear the guy on the other end of the call anymore) https://archdruidmirror.blogspot.com/2017/06/what-progress-means.html
You might quite like a lot of his posts on this archived blog on industrial civilization.
That's probably about enough nonsense from my end, but I just wanted to wave and say that I like your thread..
edit: I might add. You might really like Oswald Spengler's "Technics and Man" (recently reprinted, finally), and if you like it you could even dive into his Opus: "Decline of the West" - now that you're retired you would have time for it. It sounds like it would resonate with the zeitgeist you're channeling