To be certified fear free the practice has to jump through a bunch of hoops. The group that does the certification places cameras and views the workers and animals for a period of time. The vets, techs, helpers get training and instruction.
The idea is good treatment of the animals. We all want our pets to be well taken care of, happy, and safe. The whole fear free deal is pretty much a crock of shit though.
Fear free relies a bit too much on drugs and a bit too little on common sense. A good example is a dog can't be restrained for a nail trim. Some dogs place their paws in your hand and don't mind. Others...well they pretty much hate it. Fear free certification means that dog can't be held down while it's nails are trimmed. They would prefer to feed it a fist full of pills and bring it back later when it's so fucked up in the head it just lays there during a nail trim.
Again, we all want our pets to be well cared for. Sometimes it is best to sedate animals for treatment. Sometimes you have to make animals sit still, get nails trimmed, lay down to get x rays, etc by forcing them. We are humans and know better than animals.
I hope all turns out well for your pup!