Do Chug dogs bark a lot?

Yes, Chug dogs can bark a lot. Barking habits can vary, but Chihuahuas do lots of barking, so Chugs are often vocal, especially if they take after their Chihuahua parent. However, their barking can be managed with proper training and mental stimulation. They tend to bark to alert their pet parents, out of excitement, or if they are anxious or bored.