Brilliant advice. Take a real hard look at breed traits and think about how that works for you and the positives and negatives of the traits.
Its seems cuddly to get a dog selectively bred for companionship, but thats likely dog be a dog that doesnt like being left, and may be a bit "overwhelming" in terms of affection. Aloofness might mean you dont get many cuddles but the independence may work better for busy lives and a dog that doesnt follow you around, whine for you etc.
Dogs built for chasing are likely to struggle to lose that so might not be able to be let off lead, or get on with cats. Some breeds are designed with unshakeable hyper focus to concentrate on getting prey, following the smell etc, that hyper focus doesnt stop when your beagles ears stop working when it smells another families picnic half a mile across the park, or when your terriors prey drive means they stare at your cat all day, or run half a mile across a road for a squirrel whilst you yell aimlessly
Dogs bred for endurance may have relentless energy (some dogs have high energy in short bursts some are built with low energy, some relentless high energy for all day working). What energy level is right for you?
Intelligence might mean trainable but also might mean bores easily and will make own fun in undesirable ways if let to own devices
Dogs designed to dig will dig up your flowerbeds, dogs designed for water will love mud.
Dogs with a protective instinct will tend to be barky, and possible one person dogs so not suited to families. Some of the toy dogs are designed for barking at people that sit next to their mum, and will do this to every family member that you live with and possible be very possesive and even a risk in a family situation
Theres rarely good or bad dogs just ill suited dogs
My neighbour for example has a collie that suit's them well, they want a dog who they can do sport with, who can keep up with relentless energy. That dog would eat our house hold alive, equally ive got a dog thats independent, fairly boring but is bred for guarding. The barking is okay because i live in an area without passers by