The title of that video puzzled me - Lightsum in Europe, when did that happen? It seems that they appeared at the Donauinselfest ('Danube Island Festival') in Vienna on 6/25: https://donauinselfest.at/event/k-pop/ I've found a fan video of their full performance there, it's a little distant from the stage but otherwise good quality:
Cube Entertainment has announced that Huiyeon and Jian will leave the group which will continue with just 6 members: https://www.soompi.com/article/1551...f-huiyeon-and-jian-to-continue-with-6-members No reason for their departure is given.
Lightsum wins the award for Next Wave Artist alongside TNX at the 2022 Genie Music Awards! The show will be released at a later date, the normal live broadcast was cancelled due to the Itaewon tragedy.