have your heard of the critically-acclaimed markdown editor obsidian which is completely free to use and supports community plug-ins which can do amazing things like create kanban boards and supports creating mindmaps natively

genuinely gamechanging software, the ui is also nice and uncluttered and it has tons of themes for when u need smth specific to make ur brain click… And you can set font independently of theme if ur like me and need to change font every so often to keep things funky and fresh for the spicy neurons!! try obsidian today. im not sponsored but at this point i have sold no fewer than 3 people on it. markdown is the future bc also its a non-proprietary, very light, and most importantly extremely readable to the naked eye if u have to crack it open in notepad for whatever reason!