Chrome PC browser to Librewolf (Firefox with added privacy features)

Chrome Mobile browser to Fennec (Firefox with added privacy features)

Gboard to Futo keyboard

Google Maps mobile to Waze (still google)/Osmand for biking pedestrian/Transit for public transit/Komoot (have not used)

Google Maps PC to OpenStreetMap.org

Gmail to Proton Mail

Google Calendar to Proton Calendar (no search feature yet)

Youtube to TikTok (also targets). If you still want to use YouTube or YouTube miso, ReVanced provides premium access for free.

Youtube Music to Spotify or free library resources, revamped works for Spotify too but I read they can ban.

Google Drive to Archive.org or Dropbox (also targets)