This is by no means exclusive to KDE, though. Notifications and media control does work on other desktop environments as well (at least it does on XFCE), though media control has to be done inside the KDE connect app.

I agree, but I also know that there are many people with an eye of design and there are other alternatives.

But Markor is my favorite app, especially because it can edit .md files from the filesystem (kinda like Obsidian for mobile but FOSS)

Markor - A markdown/text editor app. It is frankly not the best in terms of design, but it does have quite a few neat features.

Just wish that firefox Android supports “right clicking” extensions, though.

Right now, extensions that use the right-click context menu to function (e.g. Singlefile) doesn’t work that well on Android.

I’ve also found another client for Android: syncthing tray, which seems to come from a popular client for desktop but it also supports Android.

https://github.com/Martchus/syncthingtray

Personally, I find it a good replacement, though its gui is slightly slower and it does not support all the features that syncthing-fork has.