Will information be leaked when applying for an invention patent?

When you apply for a patent, you can choose to make it public or not. After publicity, your technology will be known to others, but they can't use it unless you approve it during the protection period. In any case, after you apply for a patent, you will publish some information, but it is completely different from not applying for a patent and being known by others. If someone else applies for a patent, your patent may lead to your unnecessary use. So with new technology, we must apply for patent protection first.