I have done this on a few friends phones who cannot afford a new phone, and or, their phone is not supported by lineage, E/os or any other AOSP custom roms.
I install Lawnchair which is not available on F-Droid unless you add the IzzyOnDroid repo. .
I use droid-ify or neostore, both make it easier to add repo's and include lawnchair.
for the debloat:
Adb is the way to go here:
A lot of the google stuff can be removed, the caveat is that google play services and google play store cannot and should not be removed.
you can safely remove: Gmail, Google One, Google Wallet, Google Podcasts, Google News, Google Hangouts, Google AR Core Library, Google Docs, Google Play Movies, Google Music, Google Android Auto, Google Maps, google Chrome as well as facebook. youtube, amazon, ebay, netflix, linkedin, etc,
as well as all the other surveillance, data harvesting bloatware:
com.amazon.appmanager: com.amazon.mShop.android.shopping: com.booking com.ebay.carrier: com.ebay.mobile: com.facebook.appmanager : com.facebook.katana:c om.facebook.services: com.facebook.system: com.linkedin.android: com.netflix.mediaclient: com.opera.browser: com.opera.preinstall: com.spotify.music
A complete list here:
[GUIDE] Remove Google Play Services from Android without root via adb shell (more privacy for your malware phone)
https://xdaforums.com/t/guide-remove-google-play-services-from-android-without-root-via-adb-shell-more-privacy-for-your-malware-phone.4720085/
To enable ADB:
https://www.xda-developers.com/install-adb-windows-macos-linux/
Be careful