Like how ‘X’ attracts marketing and typographic knuckle-draggers in English, or how all our AI companies have butthole logos for reasons that only make sense if you understand the underlying companies and culture.
There's 5 of them, two of which happen to have been acquired by Google. Fair to say it's likely a coincidence.
Interestingly, they all use "vav vav" as the start of their Hebrew names. "Vav" is the hebrew letter for V, so it's kind of like using VV to represent W.
Maybe you're right, and it's a stylistic thing! My knowledge of Hebrew ends in Hebrew school, and that mostly focused on blessing and prayers over startup naming.
In any case, I'm pretty sure it's just a coincidence, I don't think it's a stylistic thing, unless I'm missing something.