The majority of laptops intake from the bottom for a reason. Those that don’t normally have to make major sacrifices. It’s just physics that thin blower fans need a large area intake above or below to work best.
Honestly, it’s not a problem to me, at all. You just keep the fan from being blocked by putting your laptop on any kind tray, plate, pad, other hard surface. I use a 2mm aluminum plate. And since I often use a laptop where that’s needed, I just applied small circles of velcro to each corner & the plate stays there unless it’s going into a bag, then I pull it off and place it over the screen side to protect it. Anything will work for this, aluminum, wood, stiff plastic sheet, carbon fiber for a more premium feel. Sellers will cut carbon fiber to a custom size for you. Framework 13 damaged from backpack transport, Any recommendations for fixes? - #12 by lbkNhubert
If you just want something dead easy, there are a few laptop lap pads available