My thinking has always been, when in doubt free float the barrel.
With wood stocks, a rifle that shoots good at the range under ideal conditions can sometimes turn into a scatter gun in wet or humid climate, such is the nature of wood to absorb moisture and become distorted, in turn putting additional pressure on the barrel in one direction or another.
Some manufacturers, Remington and Vanguards come to mind, build in a pressure point at the end of the forearm. This can be easily eliminated with a bit of careful sanding.
Forbes beds the entire action and barrel, and has a reputation for remarkable accuracy...but this involves well crafted,rigid and exceedingly stable synthetic stocks that do not respond to climatic conditions of any kind.
My current go-to rifle, a Vanguard .300 WM, came with a wood stock. On a good day it would group about 3" at 100 yds. I ditched the stock for quality, free floating, Pacific Research synthetic, and my first sight in group measured 5/8".
My hunting partner, once upon a time, carried a Parker Hale with a wood stock. You didn't know from one day to the next where it might put a bullet. I free floated it, and it became a reliable, decently grouping hunting rifle.
Rifles today, even the cheapest ones, largely tend to be more consistently accurate than those of twenty years ago. This is due to better manufacturing processes, primarily involving CNC machining, that produce tighter tolerances. But also, most rifles are designed with free floating barrels, which very likely factors into the equation...not to mention that this also reduces manufacturing costs in a very competitive market. The reality of better ammunition quality is a contributor, too.
That said, in some instances, the exception rather than the rule IMHO, a pressure point at the end of the forearm can control barrel vibration and improve accuracy. The trick is to this is, how much pressure? Theoretically, something not exceeding ten pounds, the amount of energy on a scale it takes to separate the forearm from the barrel. But again, wood mixed with damp climate can toss all this out the window in a hurry! This may work reliably with a well made, and thus very stable synthetic stock, but I personally wouldn't put much faith in it otherwise.
As for .22 caliber rifles, I don't think a lot of this applies. 40 grains of lead ahead of about 7 grains of powder doesn't produce a lot of barrel vibration in the first place. Even so, again wood and water don't mix well, and it could be a problem...albeit most of us don't regularly push a .22 for accuracy out beyond 50 to 75 yards anyway.
I make sure all my center fire rifles are free floated as a matter of principle, and to date the results have proven this to be the best course.
FWIW.