Its yet to cement itself in the metagame, only featuring as a sideboard card in the Top 8 of Worlds (in Golgari) yet its also showing up in builds of Esper Control
Recent examples include last years Iono full-art trainer card, part of Japans Clay Burst set, which proved so popular that Japan sold out of all Pokmon cards
Optimized decks are unlikely to be prepping for this metagame, and are more likely simply trying to be as powerful as possible in a vacuum
Last but not least, the deck boxes Lorcana comes out with are actually quite good, and while I cant say I recommend using the sleeves (I dont personally), the deck boxes are certainly worth picking up if you are serious about the card game
As it so happens, I was able to delve into the depths of my old online accounts where I used to house a bunch of my decklists I was working on and pulled out three old lists from this Classic Commander era