Here is a short list.
Pc: Cachyos(Preformant linux distro based on arch),Cinnamon (fork of Gnome 3),Librewolf (web browser)
Android phone:F-Droid(Appstore),Clipious(YouTube client but network is nonfree),aurora store(replaced Google play store with this and network nonfree),Iceraven (Web browser,Can be hardened as much as mull.),
Cross platform: Localsend(Airdrop for any device),Vlc media player
Yeah that's it,here is my major apps I use

Mull, Mihon, Anytype, FlorisBoard, Librewolf

Android Custom ROM itself

-Adaway -App Manager -Audile -Audio Recorder -Aurora Store -BiglyBT -BitmaskVPN -Bitwarden -Calyx VPN -Capy Reader -Cromite -De-Bloater (i translated it to hungarian) -easyNotes -eduVPN -Eternity -F-droid -Android Files -Android Recorder -FlorisBoard -Android FM Radio -freeDictionary (Owl) (i also translated the menu to hungarian) -FTPClient -FUTO Keyboard -Gadgetbridge -Android Gallery -Android Game Space -HeliBoard -Human Benchmark -Breezy Weather -Image Tools -Invizible Pro -Jerboa -Lagrange -LavSeeker -Magisk -microG -Namida Music Player -Fossify Calendar -Fossify Contacts -Next Player -Obtainium -OCR -Odyssee -OnionShare -OpenCamera -OpenVideoEditor -Android Clock -Forkgram -Organic Maps -Orion Viewer -OSS Document Scanner -Pachli -QR Scanner -Racoon -Revenge Discord Client -Root verifier -SD Maid -Seal -Setter -Shitter -SlimSocial -Spotube -StrongSwanVPN -NumberHub Calculator (i also translated this to hungarian) -Fossify Phone -Termux -Thunder -TranslateYou -UPnP Explorer -Fossify Messages -Vernet -ViperFX Material UI -Voyager -Warden -WikiReader -Xtra

And this is only my phone...