On a more serious note no I don't think Kronii is actually as depressed as she plays up for the character (if she was she likely wouldn't even be capable of streaming) in the same way that out of character Gigi probably isn't quite that upbeat and loud constantly.
Kronii's doomerism has always been played up by just her own dark/deadpan sense of humor making it seem worse.
Gigi's talks about her family alone make me think she's probably had a troubled home life for years. Her story about her tanking schizo aggro from her mom's ex by just letting him constantly blow up her phone to complain about her mom instead of letting the guy actually contact her mom just screams "this wasn't a one time thing she's probably been dealing with her single mom's weird relationship shit her whole life"
The Next Holofes stage is starting soon, this time it's the "Creator Stage" which just features a whole bunch of talents who produce original music and from what I've seen it's going to be in a shuffle format with members covering eachothers songs.
Talent list is.... (copy pasting from another place)
Tokino Sora, Robocosan, AZKi, Sakura Miko, Hoshimachi Suisei, Nakiri Ayame, Oozora Subaru, Ookami Mio, Nekomata Okayu, Usada Pekora, Shiranui Flare, Shirogane Noel, Houshou Marine, Tsunomaki Watame, Tokoyami Towa, Momosuzu Nene, Takane Lui, Hakui Koyori, Moona Hoshinova, Airani Iofifteen, Kureiji Ollie, Vestia Zeta, Kobo Kanaeru, Mori Calliope, Takanashi Kiara, IRyS, Hakos Baelz, Koseki Bijou, Nerissa Ravencroft, Fuwawa Abyssgard, Mococo Abyssgard