What is the ruling on burial in a non-Islamic country, in a coffin, and in mixed cemeteries, knowing that Muslims have a separate plot within them?

Burying the deceased in a coffin without need is disliked (makrooh). The dislike is removed if there is a need, such as when authorities mandate it. It is not permissible to bury a Muslim in a graveyard of disbelievers, and it is obligatory to transfer the body if possible and if the deceased remains intact. As for burial in a mixed graveyard that has a separate section for Muslims, there is no harm in it, and the proximity of non-Muslim graves does not cause any issue. It is permissible to bury in non-Muslim countries if burial in a desert or similar place is possible and the grave will not be exhumed.