I tutor advanced math and science and so have updated my daily driver along with whatever students were most likely to come across. In the past it was a ti 84 and then ti 89 titanium. But in the last decade schools have also embraced Desmos, a simplified version is even accessible on their standardized tests now.
For personal use, I have an android emulator that runs TI 89 titanium. It hits the sweet spot for me in terms of completely covering basic and advanced features I would need from a calculator. If I need something extremely basic, I use the one built into Google search. If I ever feel myself limited by the 89, it's always been because I am trying to do something that would be better served by Excel or Desmos.
The best calculator is the one most easily available. I personally don't see value in keeping a separate device. On the other hand, I will go out of my way to make sure the keyboard I am using has a dedicated numpad. There's nothing that comes close to the efficiency of tactile keys when it comes to doing long numeric calculations.
But I wonder if there's a size of conversation after which people will still choose AI assisted summaries. Discord had/(has?) a feature where it used LLMs summarize and then notify you about a discussion happening.