It’s true that the entire Fallout franchise is infamous for its bugs and glitches but developer Obsidian’s efforts, back in 2010, were something else entirely.
Of course, the Fallout games developed by Bethesda are known for their fair share of technical hiccups as well but Fallout: New Vegas had some spectacular bundles. One notorious example is the VAT system messing up dialogue choices, cutscenes, character models getting so entangled that they can no longer attack each other and some of the worst swimming physics we’ve ever seen.
Yet, all these years later, there are a lot of gamers who consider this the best entry in the series. Go figure.