Thank you for filing this request.
Have you used the output name and location templates in After Effects? These can automate where the render queue exports to, including locations relative to the project file.
An error occurred while saving the commentScott Knowlton commented
YES! This should be built in. We shouldn't have to use a work around.
this post is from 2018 and Adobe still haven't taken care of this?
Simply just remember where a project last wrote to.
How much code could it take?