Joplin - an open source note taking and to-do application with synchronisation capabilities for Windows, macOS, Linux, Android and iOS. - GitHub - laurent22/joplin: Joplin - an open source note tak...
Joplin is nice. I used it for years before switching to Obsidian. Still like it because of RTF support, but Nextcloud sync is so slow with it compared to Obsidian.