You are still missing a basic understanding of MOSFET operation.
To get a better idea, you can use the post #9 simulation circuit and perform a dc sweep as shown below. Determine for which Id and Vds range the transistor is in cutoff, saturation and ohmic mode. You'll find that a transistor switch is only temporarily in saturation, you want to avoid this operation due to high power dissipation.
Your Mosfet has no part number for you to see its datasheet.
A Mosfet part number has a range of on-resistance at a Vgs of 10V for most of them or a Vgs of 4.5V for a "logic-level" one. Therefore some Mosfets are more sensitive than others.
You will need to buy many Mosfets with the same part number to maybe find one that works like you show.