You can use Laravel just for the basic wiring, integrated tooling, SQL query builder, auth, sessions, and HTTP routing. It really gets out of the way if you need to avoid features you don't like. All of the stuff I listed above are a PITA in plain PHP.
I went kind of in another direction a few years ago - CodeIgniter's routing/sessions/etc base was plenty for most of my projects, but I wanted a real ORM. So I integrated Eloquent from Laravel and ignored the built-in CI database layer. A bunch of these sites are still running smoothly on modern PHP.
