That's what I would recommend but nowadays I am worried this will impact thermals negatively, since many new laptops very heavily rely on chassis passive cooling and not only on the dedicated fans.
So I didn't tell her because I didn't want the poor girl to invest a month of income on a laptop, put a skin on it, and have it burn out promptly in 3-6 months.
I don't put them on the bottom or near the keyboard, I don't think being on the screen really matters. Maybe if your laptop can do 1000 nits or something.
