Thank you Michael
It is the first time I respond here, until now I see every day this wonderful forum where I have been 2 months, the time I have been practicing with MOI, learning a lot from all of you who are great helping people.
It is the same technique from Michel's video, but with a Boolean union operation, it does not cut the remaining pieces, and for that reason I do it like this.
If I am wrong, I await an explanation.

https://youtu.be/dHrrlXUGtF0

Thank you all.

I believe you will have direct cut when the second object is a "solid" bigger than the cuted part! ;)

Yes indeed, but it is not fulfilled in this case.

But if you want the finished object to be a solid, this solution works.