Intended only for Samsung Galaxy S5 SM-G900F and possibly other S5 GSM/LTE models. Other (CDMA etc) models might be added depending on feedback/requests.
Note that WCDMA and GSM labels are switched but it works exactly the same as before. These are just labels switched by Samsung, probably because they are intended for different markets.
LTE Only Mode is also available from Xposed Module Repository (source).