If you work in an office, do you greet your colleagues who are sitting at the same desk area as you, and do they say hello to you when you arrive in the morning?
I've been in my job nearly a year. It's hybrid, most people do 1-2 days a week in the office and the vibe is very low energy. Recently I've stopped trying to say hi to people and now just ignore people in the kitchen - some days I can come in, sit down, and genuinely not speak a word to anyone all day. Aibu to think that's odd? I'm not looking to make BFFs at work at all, or hang out chatting all day. Like everyone else, I just want to get in, get my work done and leave. But I don't think it's unreasonable to think it would be nicer, and less awkward, for colleagues to acknowledge your existence? It's kind of soul sucking!
Also it's not personal. There's only one little office clique who really talk to each other, and they're not very friendly to outsiders.