From a far enough view point anything can be “simple”. Anyone who has ever had to design, build, or program something for a client can tell you that what is “simple” in concept can be very complex to execute.
Life happens to everyone and finding ways to fit in “doing the thing every day” can become a very complex problem.
What kind of bed do you have? If your bed isn’t flat this can happen as well. I scrapped a magnetic PEI sheet because it was never gonna be flat enough for a whole smooth first layer for me