It turns out that Nintendo has made quite a few changes to the Switch with the new OLED model. A major one relates to the cooling system, which is smaller than the LCD model.
Nintendo Switch OLED Model Screen OLED Assembly Replacement - iFixit Repair Guide
Nintendo Switch OLED Model Screen Replacement - iFixit Repair Guide
iFixit's Nintendo Switch teardown reveals a console that's relatively easy to fix
Nintendo Switch Teardown - iFixit
Nintendo Switch OLED Model Screen OLED Assembly Replacement - iFixit Repair Guide
Nintendo Switch OLED Model Dock LED Replacement - iFixit Repair Guide
Nintendo Switch OLED Repair - iFixit
OLED Nintendo Switch Teardown
OLED Nintendo Switch Teardown