> Or do devs around the world just have to bite the bullet and learn enough English to be able to use the majority of tools?

That.

There's also a huge mental switching context cost when you try to have code mixing, say, french and english together:

    size_t taille;
    site_t taille_domaine;

vs:

    size_t length;
    size_t domain_length;

Hardly anyone does the former. It's simply not a thing. I mean: sure, there are the odd projects that'll be exceptions.

But we pretty much all name our functions/methods/variables/etc. and write our comments in english.

FWIW when I code I actually both think and count in english.