Are you sure? I thought that what you describe is what packages suck as NikGapps did, while MicroG is a reimplementation of the code. It does call Google webservers, but it doesn’t run Google’s blobs (which is also why it’s severely limited/fragile compared to packages that run them)

https://github.com/microg/GmsCore/wiki

Email blocklists are based on spam and malware.

I’ve never heard of an email operator refusing to send or deliver SMTP messages to/from a certain provider because too many of its users support the wrong political party.

You don’t need insync - most people just automate rclone sync commands using whatever task scheduler their system runs by default (cronjobs or systemd units, typically). For those who prefer a GUI, KDE has a Scheduled Tasks app.

On Android, you can use Round Sync which is a wrapper around rclone and can import the same configs.