I have used syncthing + marktext[0] and or ghostwriter[1] depending on the content of my notes. For a daily journal I like to use ghostwriter as it has almost no distraction and it forces me to focus. It just got shifted over to being maintained by the KDE team and I really enjoy it.

I liked marktext over joplin for similar reasons. But I am probably a little overzealous in my search for distraction free note taking. I assume joplin provides more feature sets, I just happened to want less features for what I do on a day to day.

[0]https://github.com/marktext/marktext [1]https://github.com/KDE/ghostwriter