The amount of high quality Kanban / Trello-like options is low while the need for these is very high. At the same time getting started in building such a tool doesn't require a lot of resources.
I think it's a good thing and I hope to see one that can replace my Notion Kanban soon.
Thanks for the suggestion, I love AFFiNE's approach, but for me it's just not there yet. I'm subscribed to their e-mail newsletter and check up on it from time to time, but for me personally it needs some more progress, e.g. a mobile version.
Well, what makes such a product high quality is highly subjective :D
But for me personally I'd love a Kanban product that can rival Notion's feature set and simplicity, can be used offline / is local-first, offers some custimzation options, does not force me into a subscription, works well on desktop (Windows) as well as on my phone (Android).
I think it's a good thing and I hope to see one that can replace my Notion Kanban soon.