If freedom of speech is absolute, how come it's not applied...

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.

Perjury

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.

Sarah Michelle Gellar Wants to 'Bring Back Everyone' in the New Buffy - Variety

Freedom of speech does not apply to:

Terroristic threats

HIPAA violations

Bethenny Frankel Reveals Her Teenage Daughter Bryn's Reaction to Her SI Swimsuit Look - People.com

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.

No freedom is absolute.

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.

How should one handle a situation where they suspect their partner of cheating, but their partner denies it and claims it is all in their head?

Conspiracy

Insurrection

Trade secrets

"I've Made The Equivalent Of Like 2 And A Half Undertales At This Point"- A Quick 'Deltarune' Chat With Toby Fox - Nintendo Life

False advertising

Revealing classified information

Threats of violence

'Love Island USA' recap: Who got dumped from the villa? Did Huda Mustafa get kicked off? - Cincinnati Enquirer

Fraud