How Do I Hide All Filename Extensions By Default?

I like the look of having all filename extensions hidden on my files. I have my folder setup to separate files by their type so I don’t need to see what each one is because they are already grouped that way. I already know that you can go to the finder settings and uncheck the box “show all filename extensions” but that is already unchecked and yet all new files come in with their extensions. Not sure if at some point there was some terminal command that undid this default on my computer but I would love to fix it because I organize our companies new files each month and having to hide all the extensions through multiple folders each month is a hassle.
MacOS Mojave
Version 10.14.2
MacBook Pro (Retina, 15-inch, Mid 2015)
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Braden