I’ve heard about their questionable QC more and more in recent years. My “newest” Smith was made in 1997 and I’m apprehensive to buy anything new from them but would love for that to change.
Visit the Colt forum & read their tales of woe. You'll find virtually the same thing.
Now, who are the two biggest US sellers of firearms? S&W & Colt.

But there are two companies who are coming up fast, albeit one much faster than the other one. That's FN & CZ.
FN is limited in sales numbers in that they don't make revolvers at all. They only make one model .22LR pistol, no rifles aside from their AR line-up & no shotguns. Yet, they do very, very well in total sales numbers.
CZ also doesn't make revolvers, no ARs, no rimfire pistols AT ALL & all their shotguns are double barrels only of some sort. Yet they're now #3 on the sales according to what I've read. They're now ahead of Ruger in the pecking order.
But what really sets FN & CZ apart is the low numbers of QC issues. Couple that with exceptionally accurate firearms & you've got a company who is stealing customers from other companies.
I would contend it's easier to steal customers than it is to find first time buyers. Experienced customers know what quality is in a gun & what to look for. The latter is what's fueling their growth, IMO.
My .o2