Grimarse. You state that "No nakedness tolerated" between males in Muslim countries.
I am not a Muslim. I am a white western male. I have worked in the Middle East, and I can only relate my own experiences. In the UK, it is normal for men to get changed together - sports, swimming etc frequently have communal changing rooms. I was in a sports centre in one country and I stripped off to change. One man took great offence, but spoke no English, so he directed me to a sign - like we have at the swimming baths, no petting, no running etc. Except this one said 'No Nakedness'. This was in an exclusively male changing room, not at the poolside!
Subsequently, I found this to be the rule. There were individual showers, individual changing rooms. Some men struggled beneath a towel, like you see people at the beach trying to put a swimming costume on. But there was no tolerance for being in the buff.
Their country, their rules. Maybe not every ME country is the same. But I saw this in several places.
I have never heard of dacha bazi, but as I say, I am not from that region.