Do you have any advice/opinion in cord cutting?
My advice is that you should examine your beliefs about cords, and what exactly cutting them will do.
This is crudely summarized, but I believe energy cords basically just describe the current relationship between two things.
Cords can be manipulated to change the relationship between two things. (And it's pertinent to note, this does not mean interpersonal relationship. This means, how two things exist in relation to each other.)
But a relationship cord is not the last word in how two things exist in relation to each other.
The relationship cord didn't make two friends start talking. Two people started talking, and therefore the cord grew between them.
So you can cut a relationship cord to halt the energetic exchange between two people.
But if they keep talking, the cord will just regrow. And probably it'll regrow pretty rapidly, especially if one or more of them is sending a lot of energy towards the other person. This is not energy in the "ball of white light energy exercise" sense. This is sending of any energy: attention, communication, gifts, memes, etc.
In fact, if one party is obsessive, more likely than not they will "sense" that there is a disruption in "closeness" and may redouble efforts to reconnect.
People cut cords and then don't understand why it wasn't the same thing as a banishment. It is not a banishment. A relationship cord is not a tether keeping an astronaut moored to your spaceship. All it is doing is describing the current nature of your relationship.
Yes, you can magically cut it to halt energetic flow. You can also magically slow down the ability for that person's energy to reach you, or speed it up, or suck energy out of it like a vampire, or whatever you like.
Cord cutting can be a magically helpful action. But I do not believe it constitutes banishing, binding, or protection.
I think that if a person wants to do a cord cutting to get a person out of their lives, that cord cutting should perhaps be an aspect of a greater banishing ritual. Spells of neutralization and banishing, followed by protection, is IMO a much safer bet than cutting a cord and calling it a day.
As a final note: I have seen some sources suggest that a cord-cutting should stop you from thinking about another person. I do not believe this is true.
The cord may enable unhealthy thinking patterns, the way a DoorDash app enables someone to over-spend on takeout. However, cutting the cord and deleting the app do not stop you from thinking about the person or fast food. All it does is remove the most convenient place for you to put that unhealthy energy.
If cord-cutting could actually stop a person from thinking thoughts, it would be one of the most popular and ubiquitous methods of magic. Every witch would doubtless be performing it a dozen times a day.
So I think that cord-cutting can be a useful tool, but it isn't the "permanently delete this person from your life and your thoughts" cheat code I think it is sometimes advertised as.