How did you minimize your usage of Google?
Most of the smart phones are juggle between Apple and google? Where do you go for research questions and topics?
There is also NextCloud, which has an impressive number of apps that could help make getting off of Google easier.. mail, calendar, contacts, notes, drive, xmpp chat, video chat, trello clone, password manager, music player....
Collabora can also be installed to give an alternative to Docs / Sheets / etc..
To use google play store, find yalp explorer.
Why google framework is a problem and why bother with microg? Android developers are using calls to it and without it, half or even more apps would break. Microg implements those calls and fakes electronic signatures of google binaries to keep them working.