How to use F1, F2, etc. keys on Satechi keyboards without pressing fn key

The point of my original post was to be helpful for those who use non-Apple keyboards and wish to use F1, F2, etc. keys without first pressing the fn key.

Old Toad pointed out above that his Matias Backlit Aluminum Keyboard does trigger the function key options to appear, just like Apple’s OEM keyboard. So, the fn + esc key combination is irrelevant in his case.

On the other hand, my Satechi X3 Bluetooth Backlit Keyboard does not trigger the function key options to appear. But, the fn + esc key combination makes it possible to use F1, F2, etc keys without first pressing the fn key. This has been confirmed by Satechi’s Technical Support,

Though it is not related to the topic of this thread, my Satechi keyboard works as a USB keyboard as well when the fn + eject key combination is pressed. So, I use this feature to control Boot Camp on another Mac because, for some reason, Bluetooth connection into Boot Camp on this second Mac is not reliable.

The point of my paragraph immediately above is that the USB cable that comes with the Satechi X3 Bluetooth Backlit Keyboard passes data as well as power.