How to disable bootstrap validation by default?

Question

Validation

I set up my own, but along with it, when you click on the button, bootstraps also come out

Answer 1

If you attach a sample code to the question, the question will be clearer. For now, there is not enough data.
In general, so that you have something to dig:
Your framework or CMS or your own implementation of validation seems to add error classes to fields that did not pass validation. Bootstrap by default applies its styles to fields with this class if you pull the entire framework into the project. Hence the problem.
Bootstrap doesn't have any native implementation of validation by default. It's all about the classes that appear at the fields.
See through the developer panel what happens to the DOM when the checks fail.