I don't do the mind map thing, but I do make heavy use of Obsidian as my note taking solution and it has a graph view to show the connections between nodes.
I've used Freeplane for mind maps. It is heavyweight but does its job very well. Packed with useful features.
But then I found how mind maps get worse as the content grows, both in depth and breadth. A well thought out infographic is much more effective at presenting (i use draw.io). And a pen and paper is much faster and portable at capturing content at conversation, thought or video speeds.
Being constrained by physical real estate on a paper is crucial in my opinion for notes.
Obnoxiously, the vast majority of mind mapping SW is subware crap, which is a totally inappropriate model for document creation SW.
I'm on Mac and ended up getting Writemapper as the pricing was reasonable and it had export to word functionality. Unfortunately, it is very mouse heavy.
It runs fully offline with Google Drive/Dropbox/Nextcloud support. Desktop and native mobile apps are available. No subscription, one-time fee for both desktop and mobile apps.
I'm tempted to move on to "infinite canvas" freeform notetaking like Muse, but I don't want to pay a subscription fee. I wish SimpleMind had some of Muse or Kinopio's features, like audio/gif/video support, but overall those features aren't worth adding yet another subscription product to my budget.
Available on Windows, iOS, and Mac. Is paid application, but one-time payment per platform.
I like it a lot because the developer takes a lot of care in the useability of the application, and its made by a single person, so there is a lot of consistency and continuity between versions. It works amazingly with iCloud. Windows version is pretty good too. If you are using the Windows version multiple devices, just make sure you save and exit the map before opening it on another device.
