My smartphone setup: Alternatives to proprietary applications

This was initially a markdown file that I had in order to remind me of the apps I use on my smartphone device (in case I ever need to re-install the OS). I have decided to publish it. There are hundreds of similar posts throughout the internet. This is, however, a list of the apps I personally use and recommend. All of these apps are free and open-source.

• OS: LineageOS without google play services;
• App repository: F-droid for FOSS apps and YALP when I need something from the google-play store, which happens very rarely;
• Reddit: Slide;
• ycombinator/hacker-news: Materialistic;
• Meditation app: Meditation Assistant;
• Sync app (Dropbox alternative): Syncthing. I sync some files to my desktop/laptop using my Raspberry PI acting as some sort of centralized server;
• Browser: Privacy Browser;
• Messaging: Signal, Riot for the matrix protocol and conversations as an xmpp client;
• Weather: Forecastie;
• Youtube: NewPipe and/or SkyTube;
• To-Do: SimpleTask, which follows the todo.txt idea;
• Filter for blue light: RedMoon;
• Maps (google maps alternative): OsmAnd~, an Open street maps app;
• Block traffic on a per-app basis: NetGuard;
• PDF viewer: MuPDF;
• Launcher: KISS;
• Chess: I play on Lichess using their mobile app;
• Calendar: Etar;
• CalDav/Cardav: DavDroid;
• Podcasts: AntennaPod;
• TOTP/2FA/Google-Authenticator alternative: AndOTP;

I will keep this list updated for my own use. All of these apps are available in the F-Droid store, with the exception of Signal and Lichess.