I started in March this year, and so far these have been my changes:

• Google Drive -> Filen.io
• Google Photos -> EntePhotos
• Google Gmail -> Proton (not 100% yet)
• Google Translator -> Offline Translator and Mozhi
• Google Maps -> CoMaps/OpenStreetMap
• Google PlayStore -> AuroraStore / F-Droid
• Google Search -> DuckDuckGo
• Youtube -> Before PipePipe but now Morphe Youtube

And anothers changes outside of google:

• ChatGpt -> Duck.ai
• Spotify -> ArchiveTune
• Chess.com -> LiChess
• Netflix -> Jellyfin
• GitHub -> Codeberg
• Reddit -> Morphe Reddit and Lemmy
• Twitter -> Mastodon and Bsky
• I also stopped using Instagram and TikTok

its difficult to start, but the satisfaction afterwards is very good