No. Split means that the unit has 2 parts, one usually located outside and the other above the furnace. Two-stage refers to the compressor. The two-stage is a little more expensive at first, but much more efficient. The single-stage has one speed, full blast, which has a big impact on energy bills.
Your air conditioner uses chemicals that turn from a gas to a liquid and quickly return back. Best Split Air Conditioners in 2022 is already in the article the partners wrote. Air conditioner chemicals transfer heat from the air inside your property to the air outside.