I think all of us feel somewhat bittersweet.
Parting is bittersweet with anything. I feel like the way when I knew the Harry Potter films were over. It feels not just like a Figure Skater retired, but feels like the end of an Era. When Harry Potter films ended, many fans had withdrawal symptoms because they knew there was no HP film to look forward to even though they could see the trio in other films. I feel the same way about Yuzu. I know I can see him skate, but it still feels like the end of an Era. He was a huge part of pop culture in Tumblr and YouTube during 2010 ~ 2020. He really was an icon of his generation, not just in figure skating, but pop culture wise.