My complete setup is currently as follows:
Linux Mint and FreeBSD on all my computers and notebooks
Pixel 9 with Graphene OS (but will be replaced by a new Fairphone 6 with /e/OS from Murena in the future)
Connected via KDE Connect
Office with LibreOffice
My own Nextcloud for files, photos, calendar and contacts
Hardened Firefox with uBlock Origin
Freetube and Newpipe instead of YouTube
Ecosia search instead of Google
Proton Mail and Tutanota Mail
Simple fitness tracker with watch, Pedometer, sleep tracker and calorie counter without Bluetooth and app connection instead of spying smartwatch and "health apps" such as Fitbit, Apple or Samsung Health
Manual recording of my health data such as blood pressure, blood sugar, sleep, steps and more in a LibreOffice Calc spreadsheet, can be easily converted into a PDF for my doctors to evaluate
Am I missing anything? Absolutely not! This setup works just as smoothly and conveniently as previous ecosystem solutions from Apple, Google or Samsung. Only with significantly more privacy, without tracking and surveillance by US Big Tech