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

And much, much more.

Conspiracy

Threats of violence

Replace Your Gmail Password Now, Google Tells 2 Billion Users - Forbes

Revenge porn

Insurrection

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.

‘Gas station heroin’ is technically illegal and widely available. Here are the facts - AP News

Perjury

Insider trading

Child pornography

Ben & Jerry’s board denounces ‘genocide in Gaza’ in ice-cream maker’s latest salvo against Israel - The Jerusalem Post

No freedom is absolute.

False advertising

Terroristic threats

The nine-armed octopus and the oddities of the cephalopod nervous system - Ars Technica

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.

Trade secrets

Revealing classified information

NASA Might Have Accidentally Landed Near A Volcano On Mars - IFLScience

Freedom of speech does not apply to:

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.

HIPAA violations

Satellites keep breaking up in space, insurance won't cover them. - Space

Fraud

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.