There are healthy debates/ discussions concerning the sacraments w/ several different viewpoints on the Eucharist. Christians who believe in a literal presence of Christ in the Host and Chalice may call it transubstantiation/ consubstantiation/ sacramental union/ “metabole”. These Christians also believe that we receive forgiveness of sin and eternal life when taking holy Communion.
Among Lutherans, there are several names for the Mass; the most common in America is Holy Communion but also the Eucharist, Lord’s Supper/ Holy Supper, Blessed Sacrament, etc. Many other Protestants also use some of these terms for the Mass yet do not believed in the Real Presence and are very unlikely to call it Mass. Roman Catholics and Orthodox also refer to the Mass as the Holy Eucharist.
My recommendation for Lutherans and Anglicans [motley as they are, per GKC] is to exclusively refer to the Sacrament as holy Mass in order to assert/ proclaim the Real Presence, as Catholics and Orthodox do.