I'm also "just kinda disappointed" at Saya graduating. I guess I should be sad in sympathy for my oshi who will definitely be sad, but she really didn't make an impact for me. She was an extra voice in gen collabs, and with Hina still away it's going to start getting lonely in those.
My most poignant memory of Saya was during a
Euphoria collab, Saya couldn't actually play the game, instead just hanging out in voice chat during the first half and then went missing entirely during the second half. That collab was an entire year ago and somehow ended up being a metaphor for the entire gen, Runie Eimi and Muyu running around doing their best, with Saya throwing in a word or two but being mostly absent, and Hina AWOL. This was before Hina's hiatus so it's pretty funny in hindsight.