Ironically, claiming you're "tech savvy" unfortunately does not make you actually tech savvy.
You can not jailbreak an Android phone.
Now correct me if I'm wrong but rooting your phone does not give you the ability to change carriers.
Also, if you know its a noob question, why not Google it? XDA is your friend.
You're wrong? Phones are locked by companies like sprint for example. They become unlocked after you pay them off.
If you jailbreak a phone. It's available to be connected with any other carrier.
As far as an android being unlocked/jailbroken. Im not sure myself. I havent had a jailbroken phone in over 5 years.
Google isn't what it used to be. Most results are trash or pay us type of scams when it comes to such tech. Forums are better than google these days imo
Again, what you're asking is impossible. You can't jailbreak an Android phone.
If you Google "s8+ root" literally the first link is from a forum, supporting your claim that "forums are better". XDA is exactly that type of forum that you need.