Google then sells your data to data brokers and anyone willing to pay a pretty penny. In the end it doesnt matter if your device is only bleeding out of the Google hole exclusively because everyone else can just buy it off Google (who probably does a better job at deanonymising and aggregating your data.

LINE - just the tip of the iceberg of privacy and security concerns. https://reports.exodus-privacy.eu.org/en/reports/jp.naver.line.android/latest/

Agreed. May best to get family and close friends on Signal right away. Telegram is horribly unsecure.

Signal desktop is designed to be a stand alone app that uses the phone phone to first verify the connection via QR but after that relays messages, calls, erc direct from and to the server, inrependently of the phone app.

Anysoft Keyboard on F-Droid. Lots of button customisation options to cater to individual needs.

G-Board almost definitely logs all keystrokes. Ditch it!