Sure, if the warning levels are poorly tuned I might configure my LSP to ignore everything and loosen the enforcement in the build steps until I'm ready to self review. Something I can't stand with Typescript for example is when the local development server has as strict rules as the production builds. There's no good reason to completely block doing anything useful whatsoever just because of an unused variable, unreachable code, or because a test that is never going to get committed dared to have an 'any' type.

An example I like to use are groups that put their autofmratter into a pre-commit. Why should I be held to the formatting rules for code before I send my code to anyone?

I'm particular about formatting, and it doesn't always match group norms. So I'll reformat things to my preferred style while working locally, and then reformat before pushing. However I may have several commits locally that then ge curated out of existence prior to pushing.

Not if I push my branch it to origin. But until I do that, it's none of your concern if I do or don't. Once it gets thrown over the wall to my colleagues and/or the general public, that's the point where I should be conforming to repo norms. Not before then.