All their knives here are frame locks.
In some of the pics, you don't see the lock because the pics are taken from AliEx.
A lot of sellers there photoshop the locks or else their listings gets removed, some kind of BS rule of the site.
All the models I own can easily be opened/closed one hand.
As for operating with gloves, that would depend on the size of the knife and the size of your hand, it being harder on the smaller knives with large hands.
I prefer larger knives so the 3 that I own, I can use them with gloves no problem.