While I really appreciate the size of the 12.3 inch display I am not a big fan of how reflective it is in certain situations. Sometimes the display is almost unreadable. I had a similar problem with smartphones over the years. To solve this problem I researched and found two possible solutions; SCREENPROTECH and NuShield.
I ordered from both companies with the preconceived notion that each product would fully cover the 12.3 inch display area. This was not the case. While the SCREENPROTECH does indeed cover the entire screen area the NuShield only covers the active display area, not the surrounding borders. This was the difference for me. I took time to place the NuShield protector in place and decided it was not suitable for me. I have used NuShield in the past and have been pleased with the results. For those people who only want to cover the active display area I am certain the NuShield product would be a good choice.
Having made an installation choice I prepared for the install which did not take much effort as SCREENPROTECH provided nearly all I needed. I had a few extra towels to "mop up" the extra liquid solution during the squeegee process. The kit comes in a round protective shipping tube. I added warm water to the spray bottle and started the install.

Two screen protectors are provided; one for the 12.3 display and one for the Main Instrument display which I did not care to install. Once removed from the tube the protectors flattened out in a short amount of time.
Installation details can be found on the SCREENPROTECH website.
The results:

Immediately after installation I observed a cloudy screen surface. Past experience has shown that most of the cloudiness will disappear over the first 24 hours as the liquid evaporates between the display screen and the protector. I expect more clarity over the next few days.
Speaking of clarity it should be noted that any anti-glare screen protector will be slightly "fuzzy". As a long time screen protector user I have become accustomed to this and have found that "fuzzy" becomes a non-issue for me for one important reason. With this screen protector there is nearly zero reflection and fewer distinct fingerprints.

Overall I am pleased with the ease of installation and the results so far.