I still need to get through V but I don’t consider it part of the main series. More a spin off title for me.
It's true. It felt separate entity on its own, which it's heavy focus on (brilliant) gameplay and more skeletal narrative. But I did really enjoy V for simply how it played. Also, I got it free on PS plays and have been pondering going back to it. It's just those repeating missions that put me off for a second play through.
But I do adore this series in general. The story telling, the hyper stylishness, the bosses etc it was just always a series that kept you on the edge of your seat and feeling like a child. Even 4 which I'm not sure is universally loved was an joy to play. I remember playing the demo (Olga!) of 2 repeatedly, it was as next gen as I've ever seen a game be.
Would love to see a proper old school MGS again but I suppose as far as new content, it's a series that's done.