I'm talking about both the survivor and killer meta of the game in case you were unsure.
I mostly just find it stale on the survivor end, the only boring thing on the killer end is Pop. The more that certain perks come into play, the more stale it becomes, which is why BT, DS, Pop, BBQ, Dead Hard, Unbreakable, OoO, and Iron Will are boring to me. Aside for my general dislike for DH, the fact that these perks practically have to be played around almost every game is just bland. Rarely do I have to scramble to find Devour Hope, I haven't seen pebble in ages, and I've never seen Red Herring. There's so many perks that don't see the light of day due to the power difference, and due to said difference we only ever see the same 7 survivor perks used, and the same builds used for each killer. For the love of god, just shake things up by buffing the weakest perks drastically, bhvr please.
Getting stale? Bold of you to assume it hasn't already GOTTEN stale. Which it has.
I've always been one to say that older perks need to be buffed and reworked on a massive scale. Meta and other problematic / controversial perks like Decisive Strike and NOED also need to be nerfed and reworked on their own wide scale.
Something not many people think about though is also the new perks, the ones that have incredibly niche uses and value only in very situational circumstances. Those actually need reworks about as badly as some older perks, almost every single perk from the Stranger Things chapter and forward into recent history, is entirely liable to be placed under scrutiny.
It IS stale. Every killer I face runs the same perks that work the best for that killer. All my survivor teammates run the same handful of meta perks. I try to play around with the perks I have and try different things, but sometimes I'll just retort to the perks that work the best for me (Dwight perks + Spine Chill) because otherwise I fall back compared to the rest of my team & the killer. This game doesn't encourage many different playstyles sadly.
I am tired of seeing dead hard on survivors, it is so easy to counter as killer, and there are so much better exhaustion perks like Lithe. The killer meta is pretty stale right now, with almost every killer running the same perks.