Buddha is a 'dhamma', which means a set of knowledges, practises, path & realisations that support the mind to be free from suffering. The word 'dhamma' means 'that which supports'.
Therefore, Buddhism is not a religion & is not 'yoga' or 'binding'. In his 1st sermon (SN 56.11), the Buddha taught to not be bound ('yogo') or 'devoted to'.
The Buddha taught to not cling to the teachings (MN 22); not to cling to him (SN 22.87) or have blind faith in him (MN 38; AN 3.65). The enlightened practitioner is 'independent' (MN 56).
The Buddha called his path of practise 'the holy way of life' ('brahmacariyaṃ'; MN 29 & 30) therefore it is certainly a way of life rather than a religion.
There is nothing 'supernatural' in Buddhism. Everything is natural (dhatu; MN 115; MN 140), including phenomena such as 'supernormal psychic powers'.
The 'gods' in Buddhism are merely people; i..e, the rich, powerful or psychic mystics from other paths. There are no gods, apart from people, such as Sakka, king of the gods, who lived in a palace with many sexy nymphs (MN 37). The gods rule the people (SN 11.5). That is why in Thailand, the king is considered a 'god' or reincarnation of the Hindu Vishnu.
However, in countries such as Thailand, Sri Lanka & Tibet, Buddhism is a religion for the common people called 'puthujjana', where the common people believe in spirits, spirits of ancestors, ghosts, gods in the sky, gods in the trees, angels, reincarnation & other superstitious 'religious' things.
This photo is of people in Thailand worshiping a Hindu god & spirit house.