If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

No freedom is absolute.

Fraud

Threats of violence

Is the water safe to drink in England like here in America or is it necessary to bring tablets to prevent any cholera when in London?

Insurrection

Revealing classified information

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

What was your most memorable experience catching a fraudulent car seller?

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Terroristic threats

Freedom of speech does not apply to:

How can I move on from my ex?

Perjury

False advertising

Conspiracy

Who is the most trusted person in your life, and do they have the same trust on you?

Revenge porn

Trade secrets

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

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HIPAA violations

And much, much more.

Child pornography

Are there any queer Space Marine Legion in Warhammer 30k or 40k?

Insider trading

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.