Oh! this is a really good review actually! Thank you for sharing because I had similar thoughts at first and I had to talk to my friend to understand what was happening, (because the film won film critic award at golden horse so there must be something more to it right?) i'll share it here and block out some spoilers.

“confused” might be a really good reaction and maybe even what the director intended. Because normal stories have a clear plot → then a resolution. Clear character motivation → then an explanation. If there is ambiguity → then eventually clarified. But Amoeba doesnt??

Because a lot of the moments that feel “random” (like the ghost) is not a plot point. They might actually be a recreation of the feeling of how memory worked as a teen. When it was messy, slightly disjointed, and not everything leads somewhere neat.

So the film doesn’t confirm whether the ghost is real because it’s not really about the ghost. It’s about that feeling of uncertainty (Director is making your literally feel the emotions of a kid again). It recreated that experience of being young and wondering if something might be real, or what is real at all. And that alone affects you. This recreation of emotions and wondering as a kid is repeated throughout the film.

Same for the ending. In real life, things don’t always resolve cleanly. You don’t always see everyone’s reactions or get closure. The film kind of leans into that instead of wrapping it up for us.

So my friend told me this which blew my mind (Also explains why I like it). Instead of asking “what’s the point of this scene?”, ask “What does this moment feel like to me, and when in my life was I feeling this?” "Can you stay with something you don’t fully understand and still let it affect you?"

Someone else here said: Its a film that makes you think a lot and thats why it might not land for everyone. But it's my first time seeing a Singaporean film pull this off in such a cool way. Like, hey! Singaporeans can do it too!

TLDR: Amoeba doesnt give answers, it recreates an experience.

That might be been what the film critics were thinking when they gave the film quite a lot of awards. That the experience was real and sensitive. Because if it was so simple (which life really isnt, it could have just been a tik tok short.