How much did Chopin reach on the keyboard?

Some sources say a ninth, others a tenth, others even an eleventh. Yet he was roughly my height: 1m70-73, and my hands stretched to the max are only a tenth.

Liszt was a twelfth according to some sources but I saw some redditors saying he was only a tenth?

Scriabin, moreover, according to many reliable sources, was an octave-a ninth, yet he often wrote very large chords which he therefore probably could not play, strange?

The only one I'm sure of, because at the same time it's never forgotten, is Rach's thirteenth lol!

Besides, who knows how much Mozart and Beethoven made? It seems to me that Mozart was 1m65 tall, he must have had very small hands, right?