It's like baking a cake without adding sugar; it's not really a cake anymore.
Sometimes teams don't understand practices and will discard them.
As an example - retrospectives. I've worked on teams where we inspected and adapted our process on demand. We didn't wait till the end of a sprint.
I've managed individuals on teams where they're discarded retrospectives. They've complained to me about certain processes (not scrum ones) and when I've asked, "why didn't you raise this in the retrospective?". "We stopped them, we didn't see any value".
No doubt they weren't getting value out of them, but that doesn't mean they were doing things well and they lost opportunity to improve as a group.
For context, currently, I manage a team of 60ish without Scrum. I see Scrum as a bit dated now.