Would you call it free speech if the whole world was able to track your position anywhere in the world 24/7?

Yes. If you're just making arbitrary choices on each instance you're not a free speech zealot you're just making judgement calls like everyone else.

Of all the verifiable complaints I've heard about Twitter censorship, the best left-wing one was "they banned the Elon Musk jet tracker" and the right-wing was "they banned people for saying there are two genders." Anyone have a better one for either of these?

I would fly commercial

The world still has the ability to track it, this guy was just calling attention to publicly available, unencrypted data.

Further, Elon said he considered it free speech he was deliberately protecting.