What you are reading/saying is correct for most of the mankind.
What I am showing you is a very professional installation technique. A skill I acquired as part of my career previously.
2 extra points for guessing the movie [emoji12].
OK jokes apart, once upon a time I used to work for the then worlds largest electronics and phone retailer group (Carphonewarehouse/BestBuy) in the UK. We were given extensive product training by what is the King of Screen Protectors, then and now, Zagg, the makers of InvisibleShield.
I may have done hundreds if not thousands of screen protector installations professionally, on iPhones, iPads, Samsungs, HTCs, even Nintendo DSs etc... You name it!
When I say so, these devices are designed to withstand a lot of damage. As long as liquid sprayed is taken care of, there is no harm done. I sprayed Alcohol, as it is easy to play with, and I have easy access to it.
If anyone can claim to professionally install the plastic screen protectors without liquid sprays without bubbles/dirt etc, I will want to see their procedure.
My installation came out without any bubbles or dirt for some reason. You can guess why.
I wish you Eid Mubarak.
Tapatalkin' from my Sony Xperia Z3 Dual 4.15.10