For reference Craft Notes does this very well

Yes please completely agree that folders is a must. Or if it's not for everyone a way to opt in and use a folder structure or not use a folder structure. Once this feature is implemented and I can directly transfer all my obsidian notes which are already organised in folders into reflect I'll sbe your number 1 customer! So pleeeeesseeee do this :))))

Please. Some type of folder structure is always a must. Hashtags and backlinks don't do the job.

Definitely. This would help with implementing Tiago Forte's PARA framework

Folders like Obsidian would be a useful addition. Sometimes I just want to search some info within a folder, not the whole Graph. It would be easier to organize info and searches that way.