I would first approach this problem by first trying to convert as many apps that you have into a Foss alternative ( you could use this site to find the alternatives: https://alternativeto.net/).

Then if I was comfortable enough I would later on try flashing a custom rom like lineageOS (I would recommend doing this with a second phone if you have one, like a older phone to get used to the OS since it is a bit different and if something happens you have the original phone as a backup).

Then I guess the final step would be to isolate your work apps that aren’t Foss like WhatsApp into a separate environment with an app like shelter.

Edit: Also try to not rely on google services as much as possible by using alternatives like protonmail/tutamail for email and other search engines like startpage, duckduckgo and searX (or searXNG, I do prefer more this one) (searX/XNG instances being the best search engines out there)

You can debloat it if your device is rooted but keep in mind that if you uninstall a core app that is tied to the system you will brick your device.

Your Motorola G71 is compatible with LineageOS. You can try install it. See some tutorials on youtube how to install it and you probably ready to go.

Hope this helps.

https://xdaforums.com/t/official-lineageos-18-1-for-the-moto-g7.4255319/