[Tarean]

For obsidian it is a significant advantage because you can have plugins that e.g. render a markdown task lists as a Kanban board.

It seems to fall into the vs-code category of being sufficiently well optimized, but if you wanted to deal with millions of files then some popular plugins (queries on tasklists in all files, aggregating data into diagrams, etc) probably would get slow.

[bartvk]

Good point, I hadn't thought about that.