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

Freedom of speech does not apply to:

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.

Revealing classified information

Does a narcissist ever get their comeuppance/karma for the vile things they've done? Such as cheating, smear campaign, etc.

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.

And much, much more.

Terroristic threats

Why Mike Tenay Passed on WWE x AAA Worlds Collide Appearance Revealed - Ringside News

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.

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.

False advertising

Senators get ready to roll out a new crypto bill - Politico

Conspiracy

Insurrection

Threats of violence

Scientists learn how mosquitoes outsmart and evade human defenses - Earth.com

No freedom is absolute.

Fraud

Trade secrets

Scarlett Johansson plants a big kiss on Jonathan Bailey — this time in front of husband Colin Jost - pagesix.com

Revenge porn

Perjury

Child pornography

PWHL SEATTLE SIGNS HILARY KNIGHT TO ONE-YEAR CONTRACT | PWHL - Professional Women's Hockey League - PWHL

Insider trading

HIPAA violations