Not in classical Sanskrit. Vedic Sanskrit had pitch accent, which had been lost by the classical Sanskrit era. English has stress accent. But many languages do not have stress accent, and either have pitch accent or syllables are not accented at all.
Every word has stress. You probably mean the first phoneme is stressed. And the “rum” sound you’re looking for is called the “schwa”
Not in classical Sanskrit. Vedic Sanskrit had pitch accent, which had been lost by the classical Sanskrit era. English has stress accent. But many languages do not have stress accent, and either have pitch accent or syllables are not accented at all.