I've been happily using #FreeSoftware for 10 months. Everything I would otherwise be doing on macOS or an iPad is easily done on GNU/Linux:
- Coding and managing websites with apps like Kate and Filezilla
- Spreadsheets with LibreOffice Calc
- Writing with Emacs or Ghostwriter
- Web browsing with LibreWolf (more private than Safari)
- Local music with Rhythmbox
- Local cloud with Syncthing
- Local password management with KeePassXC
- Local photo editing with digiKam, cloud sync with Ente