It's not really moving on - I'd still love to have something like this, but it's an entire paradigm shift that I haven't had the capacity for, not to mention buy-in from other parties.
ericalexander0's comment above touches on some of it ("poor assumptions, prioritizing ideology over customer value, and misaligned shared mental models")
In my particular case, I was expanding a business and starting a new one and had just discovered the whole "productivity" scene and had naive notions of using task management tools and Notion wikis to achieve some latent superpowers. But I got into a rabbit hole where nothing was good enough, there was always some element of lossiness as you moved between tools, and all the tools in the world are not a subsititute for having clear mental models and actually just getting on with the job rather than thinking endlessly about the most beautiful and intuitive ways of getting it done.
Separately from these meta-concerns, building and navigating a model was not as fluent as a Workflowy/Dynalist situation (the latency was small but annoying - like early days of Notion), and as your model built up and reorganised it was easy to lose track of things. There's still some value in graph-based knowledge management (e.g. Obisidian), but it's also important to remember that storing and having access to information (however aesthetically pleasing it might be) is not the same as knowing something.
Possibly a larger conversation lurking somewhere about productivity, management, the meaning of work, ADHD, and friction.