He holds French citizenship, apparently broke French laws, and got arrested on French soil. How is that a political decision?

So, Russian citizen being arrested in Russia for breaking Russian laws against privacy and encryption wouldn't be political?

Yes, because Russia is totalitarian. But they have a law against shitposting. OK. But it hurts my feelings.

France isn't totalitarian by having laws against privacy and cryptography?

How is it not just a neutral enforcement action against the Telegram platform? The Telegram platform knowingly hosts illegal content in unencrypted format and does little to moderate that, which is illegal in many countries. The CEO is accountable for how the company operates and what happens on the platform.

If Telegram breaks the law - which it does - it’s completely logical that the CEO is held accountable for that and is arrested

He appears to be a French citizen, so who else should be doing the arresting?