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

Insider trading

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.

And much, much more.

McDonald’s bringing it’s own version of iconic dessert to its McFlurry menu - MLive.com

Fraud

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.

Revealing classified information

Tesla is forced to remove 64 Superchargers on NJ Turnpike, Musk claims ‘corruption’ - Electrek

Freedom of speech does not apply to:

HIPAA violations

Threats of violence

The Weekender: LSU Shreveport Baseball Has Perfect 59-0 Season, Cornell Wins Men's Lacrosse National Champions - Eleven Warriors

Child pornography

Perjury

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.

Trump travel ban rattles immigrant communities across U.S. - The Washington Post

Terroristic threats

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.

Trade secrets

Do you think some men have sex with prostitutes because they're too afraid to talk to women? Money does the talking for them.

Insurrection

Conspiracy

False advertising

How were cows used in ancient India?

Revenge porn

No freedom is absolute.