Nasal vowels in latin
I know word final m and n can nasalise the preceding vowel in classical latin, but what is the high prestige way to pronounce word final m and n? Like, the letter y pronounced by most romans in greek loan words was /i/ or /u/, but if you were extra schloarly, you pronounced as /y/; I'm wondering if there was anything similar going on here, would knowledgeable people pronounce word final m and n, or was nasalising the vowel preceding the consonant more fashionable?