The various multi-colored letters (starting from the top: R, L, O, V, S, C, etc..) are part of Project Sekai's logo, which was released on October of 2020.
Haha!!!#StayAtHomeinochi-no-KagayakiIsabelleAdobe Flash2020 toilet paper shortagesAmabieKanji for "Destroy" found in the back of Demon Slayer/Kimetsu no Yaiba's uniforms
It reached record-breaking sales on 2020.Terebi-chan, niconico's mascotPienbb, need u, need u...2020 covid lockdownsIt's cancelled, cancelled
A reference to a graffiti in Akira (1988) about in-universe Tokyo 2020 Olympics being cancelledTokyo Olympics