If you are looking for FOSS, I highly recommend joplin. It’s simple but works well. I used it for many years until recently I switched to Obsidian. I dislike that Obsidian isn’t FOSS but I’m using the free tier and the community plugins really make it so much more powerful than Joplin. They both store things in Markdown so I’m not locked down to their ecosystem which I think is a requirement for any note taking app.
If you are looking for FOSS, I highly recommend joplin. It’s simple but works well. I used it for many years until recently I switched to Obsidian. I dislike that Obsidian isn’t FOSS but I’m using the free tier and the community plugins really make it so much more powerful than Joplin. They both store things in Markdown so I’m not locked down to their ecosystem which I think is a requirement for any note taking app.