The tech industry is settling on USB C and most new devices including newer iPads use it. You can also charge laptops over USB C with a powerful enough charger and a quality cable.
For instance, my new car only has USB C sockets in it, and the wall charger I got with my iPad last year was USB C.
However last year as part of combination of environmental reasons and cost savings, Apple stopped putting chargers in everything, so you now need to source them from elsewhere.
Once Apple did it, others started doing it too. My Samsung Galaxy S21+ also only came with a cable and not a wall charger.
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I work for Virgin Media - but all opinions posted here are my own