I would fault on the side of caution in the matter of leaving a puppy unattended outside of its crate. Of course it varies between dogs but some bullies cannot be trusted out of their crate unattended ever!
I learned my lesson with my first bulldog the hard way. I felt guilty for leaving Bentley in his crate so I started confining him to my kitchen instead. He never had an accident but did chew the legs off my oak dining table. I was fortunate he did not get sick from doing so and did not get any splinters in his mouth or intestines but they do teeth for a long time and sometimes like to chew when they're bored!
My second bulldog, Linus, still enjoys staying in his crate for bed and during the day if I am away. He is five years old and is fairly trust worthy but, not a few months ago, decided to raid the cupboard and eat two bags of marshmallows. What a mess!
My third bulldog, Truman is 9 months and I would not even consider letting him be alone outside of his crate. Cords, curtains, furniture, toys - they all pose a potential hazard to a curious and active puppy who is testing him limits as he enters adolescence.
In my opinion, 4 months is far too young to consider leaving Lola outside of her crate unattended. She's still teething, probably not fully housebroken, and there are a myriad of things she might get into while you're away. There are just too many dangers. Also, consider crates are a good thing and provide your bully with security, comfort, and safety while you are away. I think of it like a bedroom for my bullies.
When you do try leaving Lola out of her crate unattended, I suggest making sure she's super tired from a walk or exercise, which will limit her inherent curiosity and activity while you are away.
Good luck!
