Reminds me of the time used a private gitlab repo for a freelance contract where I was working alone. I used it to keep track of tasks in issues. Some issues in this repo really turned into me talking to myself
It depends. If you are the owner of a repository with multiple contributors and have rules for code review, then this makes sense. You create the PR so that someone else can say "Yep, meets our standards/tests/release schedule".
But if you start doing stuff like this regularly you probably want to migrate the repository to a dedicated account that exists to own that repository, rather than it be your own.