Your job title encompasses the highest-order bits about who you are, professionally. The value is much more between organizations than within a single one.

If you plan to stay at one place for a long time, it's much less important. You have a chance to figure out how things 'really' work in practice. I know a guy who is a senior architect, and everyone refers to him as that at his company, but his actual on-paper title is something like "project technical lead". It's just not very important if you are going to stay there for 20 or 30 years and chase deep breathing metis.

I don't have the same career outlook, so my job title is important to me. I actively negotiate for it. My own title is "senior DevSecOps engineer". Criticism of the acronym notwithstanding, this paints an instantly legible set of competencies around what I do best, what I do adequately, and what you probably would get better value for money paying someone else for. I'm probably pretty good at vulnerability management and securing CI/CD pipelines. Optimizing weights on our anti-spam logistic classifier is probably not the kind of thing I can do well. Etc., etc.