A:AnswerBill - All 4 HDMI ports on the QN90F are capable of Auto Low Latency Mode (ALLM), Dynamic Metadata (HDR10+), Variable Refresh Rate (VRR), and 4K@120Hz (up to 165Hz for PCs). eARC support can further be found in HDMI port 3.
~ Samsung Specialist
A:AnswerHi Pablo - Art Store (on the QN90F) provides content whereas Art Mode refers to The Frame TV's exclusive motion sensors that automatically turn your TV on/off and optimize your screen for artwork.
~ Samsung Specialist
A:AnswerHi Rob - Please give us the opportunity to better assist with this by reaching Samsung Support at: 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week, or Chat with us on Samsung.com: https://www.samsung.com/us/support/contact/
~ Samsung Specialist