One of the more neglected and somewhat mind bendy aspects of Latin pronunciation is how often -m was not pronounced. Afaik the typical -um ending was a nasalized vowel with no /m/. There was an article that made HN a while ago about censor being spelled cesor in an inscription. Probably because /n/, like /m/, was serving to nasalize the vowel before and was not itself pronounced. It also starts to hint at how the mod…
Portuguese, especially Brazilian Portuguese, retained this nasalization.
I used to look at those topics and think in terms of what is "more like Latin", but at one point I realized... All of them are probably accurately capturing some form of the history of Latin, and there isn't right or wrong.