The "v2" part of your search is probably the most relevant clue here. This resource pack has gone through several updates, with a version history that includes updates like "Update 15: Released!" and plans for more . It’s very likely that "Boredom V2" is a fan-made shorthand for a specific, improved version of this texture pack.
Should I focus more on the or the technical side of game engines ? boredom v2 game extra quality
Why upgrade to the Extra Quality version? Here are the five pillars that set this version apart from the standard Boredom V2 experience. The "v2" part of your search is probably
What are you currently playing on? (Mobile, low-end laptop, or gaming PC?) or gaming PC?)