It looks like an eggbut snaffle with a french link mouthpiece. It's not thought of as harsh IME, but of course it all depends on the hands on the reins.
As above. I’m not too keen on the link as think that would be less comfortable than the lozenge type which has a similar action, like some of the neue schuele ones (?).
Eggbutt with a French link, usually thought of as a mild bit. The eggbutt rings make it more stable I think than a loose ring. I think a Dr Bristol the link is right- angled to the bars of the rest of the mouthpiece making it harsher. I’ve not ever seen one in use. I think a horse with a fleshy tongue would prefer a flatter link to having a lozenge poking in its tongue and roof of mouth so it really depends on the horse. My older horse seems to prefer a single joint which is supposed to be harsher having a more nutcracker action.
Many horses go beautifully in this bit the French link was often what we started horses in before the days lozenges .
The eggbutt keeps the mouthpiece stable horses may prefer this but many prefer being able to move the mouthpiece with the tongue that’s personal to the horse .
Some people confuse it with a Dr Bristol which is quite a harsh bit - but that looks like a normal French link, a Dr Bristol has straighter sides on the middle link section and it sits at an angle.