The place where I remember a gap was laptops with dual graphics cards designed to use a low power one for light duty and a more powerful one for heavy duty task

The place where I remember a gap was laptops with dual graphics cards designed to use a low power one for light duty and a more powerful one for heavy duty tasks. That said, avoiding that mess is fine for a non-gaming laptop. And I've had no trouble installing Linux on Dell, Asus, or Lenovo. Many configurations specifically listed Ununtu as an OS option (but why bother getting it preinstalled), so sure any of those would be fine. They're not especially rare anymore.