Mohand
Yes. Mohand is a regional Amazigh (Kabyle) adaptation of the Arabic name Muhammad and is used by Muslim families in Kabyle communities; it carries the same core meaning 'praised'.
No. Mohand itself does not appear in the Quran as a form; it is a local adaptation of Muhammad, whose name does appear in the Quran.
Mohand is primarily attested among Kabyle (Amazigh) communities in northern Algeria and among Kabyle diaspora populations.
Mohand arises from the integration of an Arabic theophoric/praiseful name into Kabyle phonology and orthography; it is an Amazigh cultural form of Muhammad.
Yes. As an adaptation of Muhammad, Mohand is used by Muslim families; as always, local cultural norms apply when selecting names.