Obsidian is what I use. I used Joplin and Simplenote in the past.

I’m using Obsidian on Android and on Linux and sync my notes with Nextcloud. Nextcloud also has its on note taking app but I prefer Obsidian. I also love the canvas feature. I also love the fact that the files in Obsidian are Markdown files. You can still edit them with any text editor if needed.

I’m also using Firefox on Android. I have uBlock Origin extension installed.