Okay, I see what you mean, Mr. aarrondgraham. They are simpler to operate for the most part.
There used to be a lot of photos of fancy inlay work on grips and rifle stocks in the 1950s for some reason, as well as very unusual, by today's conservative standards, rifle stocks, with exaggerated Monte Carlo stocks, thumbhole stocks and the like. But that was also the day when there was a lot of sporterizing of surplus military bolt actions, which also was taking place before WWII. They show up at gun shows now and then. One of the nicest sporterized military bolt actions I ever saw was a Krag, which as you might imagine, would not be the easiest thing to work with but probably better than a Lebel.
But you didn't see plastic stocks on rifles, though they were quite common on handguns, both pistols and revolvers, including new ones. Colt Government Models sometimes came with plastic stocks they called "Coltwood," if I recall correctly. Gun magazines also carried lots of ads for handgun grips. Fitz is a name I recall. I think Pachmeyer got into the game later.