The cross is fundamentally archetypical across the globe. I'm not sure there is a culture who doesn't use it? For Hindu's it's the crossing point where offerings are made during celebrations such as Diwali, for West Africans it's the crossing point between life and death where you meet the spirits, same in British folklore (hence hanging at the crossroads and hence, probably, crucifixion), there's the swastika, Brighd's cross, ankh. List goes on. It is
old.
Christianity was very good at absorbing root symbolism, hence part of its mass appeal. Worked the other way because African diasporic-religions found it easy to transpose their own faith over the top of Christianity because of this - beating them at their own game

Something struck a cord with me recently when a friend was talking about the cross and the meeting of all directions/pathways and then went on to talk about flying ointments and the symbolism of witches 'flying into the North'. It evoked images of the standard Christian cross with it's one extra long arm rooted in the earth - the four directions and the flying path. Possibly another folk meaning.
I like the cross, I’ve used it a lot before spirit workings to open the gates. It's a strong focus point of energy (or can be) and a place to cross over.
Best wishes,
Marion.