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:

Threats of violence

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.

Baseball Opens MCWS With 7-4 Win Over Arizona - Coastal Carolina University Athletics

Insurrection

Insider trading

False advertising

Neanderthals Spread Across Asia With Surprising Speed—and Now We Know How - Gizmodo

Fraud

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.

Have you ever been physically attacked by a demon?

And much, much more.

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.

Why do so many people find Kakashi's character so appealing and inspirational?

HIPAA violations

Child pornography

Terroristic threats

How do I find a luxury service apartment in Gurgaon?

Perjury

Conspiracy

No freedom is absolute.

Why won't biden give a last minute deferred action TO ALL undocumented immigrants so Trump can't deport them? Obama issued DACA, why can't Biden issue something similar that protects ALL undocumented immigrants from deportation?

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.

Revenge porn