Topics I have come to associate with the term “management”. You say “project,” yet really you probably mean team/people/product.
Consider if you love writing as much as coding. If you don’t like documentation, and thinking of “the document” as a product then you might question your true motive. By document I don’t mean API specs and user help, I mean written account. Every email is a document. Every request should be a tiny self contained document.
Can you tell people what to do without sounding like you’re telling people what to do? People are far more complicated assets to manage than technology.
Good project management is coding your way through the minds of people. So everyone’s minds are synchronized while each individually works their way through their part of a grand unified whole.
And being accountable!
Most like to be told what is needed and measure performance on how well that is accomplished. Project/team/product managers fail when their product fails due to under-sight, oversight, miscommunication by others, even failure to foresee how stakeholders miscomprehend their own requirements.
So the move isn’t only doing your job in more abstract ways, it becomes doing the preparation for everyone else’s work in often thankless and undervalued ways!
These things may have occurred to you in some form, though it is easy to underestimate the hassle of being responsible for others!