
Most puppies of anything above toy size, need to be outside for space and exercise/habituation, for at least some time from a month old,
With my own pups they are not happy in their indoor quarters exclusively after 4 weeks of age.
So unless your garden is totally landlocked all round any outside time is a risk.
Of course I live in a suburban house and pups are literally outside back door, and side gate padlocked, but I have nipped out to shops with pups outside, but generally poor dears are brought in if I am going out, where I used to be happy for them to stay out in the day in years gone by, though their outside puppy pen/shelter is not visible from the gate..