But speech evolves. And we all pronounce "ten ex", not "ten times". Actual speech usage very clearly pronounce the letter 'x'.
So it's 10x. And no need for Unicode codepoints.
A number plus an “x” is used beyond Trumpistan. I have never in my life heard anyone say “ten ex”.
I fully agree that speech evolves, but maybe this is just in the US? I've never really heard anyone say it here in Australia, it's usually "times", although admittedly almost no one uses the phrase/format here.