No, Carbon12 not on the German or Austrian style rifles. Some German classics have folders, but not the typical British type.
The Germanic folders are usually like the ones on these rifles.
OLYMPUS DIGITAL CAMERA by
Steve Zihn, on Flickr
OLYMPUS DIGITAL CAMERA by
Steve Zihn, on Flickr
My 270 8 by
Steve Zihn, on Flickr
These are the most common to see on German and Austrian sporting rifles made from 1900 to 1925.
but those rifles were also offered with the type I used, which are basically military style, but always with windage adjustment too. most Military sights on Mausers had no windage, will that being done at the front sight.
The British folders are more of the "parade style" as show here.
416 Taylor Mauser by
Steve Zihn, on Flickr
P2160005 by
Steve Zihn, on Flickr
Custom CZ 375 4 by
Steve Zihn, on Flickr
The + and - of the 2 styles are simply that the folders make you select the blade that is the closest to your target's range and do it very fast. The slide adjustable sights allow you to dial to the range almost exactly but are slower to adjust for range.
Neither is "better". You just choose the one you like.