Nudity in Mixed Hostel Dorm

My girlfriend and I are backpacking and currently staying at a hostel in Germany. We've been in the

same mixed dorm for four nights. On the second night, a group of four male backpackers

checked in and since then the atmosphere in the room has felt increasingly weird.

What's been bothering us is that these guys are constantly naked in the dorm, not just quick changes,

but walking around, standing by their bunks, chatting with each other,

and organizing their bags completely nude, often while women are in the room.

This has happened repeatedly over multiple days. We've stayed in many mixed dorms

across different countries, so we expect that people will quickly change clothes in