I'm a big Obsidian user and (small) plugin author, but I'd move to something Obsidian like that was open source because there is a chance of enshittification, looking at this though I can't find any reference to any capability for adding plugins.
They can compare themselves to Obsidian however you like in the features table, but the strength of Obsidian is not in the vanilla experience but in the plugins.
They can compare themselves to Obsidian however you like in the features table, but the strength of Obsidian is not in the vanilla experience but in the plugins.