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:

Revealing classified information

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.

What was the most inappropriate thing your parent caught you doing as a teen? Was in the bedroom, I thought nobody else was home. My sister and I shared that bedroom but I knew she was gone. I didn’t know my dad was home though.

Revenge porn

Child pornography

No freedom is absolute.

What real evidence is there to believe in legends such as the story of Atlandida or the lost continent of Lemuria?

Threats of violence

Trade secrets

Insurrection

A Giant Mouth Has Opened on The Sun And Even It Looks Surprised - ScienceAlert

HIPAA violations

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.

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.

Apple Has a Huge Siri Problem That WWDC 2025 Probably Won’t Fix - Gizmodo

Conspiracy

Insider trading

And much, much more.

Phase-resolved attoclock precisely measures electron tunneling time - Phys.org

Perjury

Terroristic threats

Fraud

What are James Potter's flaws?

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.

False advertising