> I’ve noticed that most physical scientific and graphing calculators are easily outdone in terms of performance, capability and ease of use by the likes of Desmos and the default calculators on OS’es like the iOS, Android, and Windows.

This does not fit my experience. Physical calculators still excel with respect to handiness, and are in my experience typically more convenient to use than these bad default calculators.

The tool that rather made me mostly abandon physical calculators (except if one is forced to use one, like for some kinds of exams) is rather Wolfram Mathematica.

This program is so much more capable (a complete different league) than what every physical calculator that I am aware of has to offer that convenience and handiness of a physical calculator does not matter anymore for the comparison: Wolfram Mathematica is compared to a physical calculator like what a physical calculator is compared to doing all comparisons by hand.