Is my earphone listening now bound by battery charge limits?

I now use an iPhone 8. The more I use it, the more I hate it. My productivity is dropping at a great rate as I fight it.

What in Gods name made Apple think that when I use my ear phones (a very heavy power user), I do not want to charge my phone to get extended listening experience.

I primarily use my earphones and charger simultaneously at my desktop or in my car. I primarily us my recordings for transcribing recordings, lectures and listening to educational podcasts during travel.

Is my listening experience now bound by battery limits. What are my alternatives to achieve indefinite listening or do I go to another brand?