Yes that is a big problem for me. Italian operas and German operas would be less interesting because I can’t hear what they’re saying. Also it’s so long that it would take about 12 hours or more before you kind of know an opera at a basic levelI have a confession to make.
I have enough trouble liking/loving opera, which is ironic as I'm the de facto decades-long musical director of a Gilbert & Sullivan repertory group that generally presents two G&S operettas every year, as well as a summer concert series.
Opera is a long-form musical art form, with operas lasting 90 minutes or more.
Most of the really truly great operas are in languages in which I am not fluent.
I'm not a fan of traditional opera solo vocals, with exceptions. Honestly, I prefer "pop opera" voices.
I've accompanied several "legit" singers performing Schubert Lieder, and, man, they are unlikable. The Lieder, not the singers. The best thing about them is that they're short. The Leider, not the singers.