There's also LineageOS for older Android devices. While not so much as being "de-Googled" it is a newer version of Android for older devices, it doesn't come with all the garbage so in a way is de-Googled.
I've done LineageOS on my Samsung tablet and love it, battery life is longer runs smoother/faster but have had a glitch on battery shutting down, but may be unrelated to OS.
Sorry, only Google Pixel phones are officially supported. You can try on other devices at your own peril.
https://grapheneos.org/faq#supported-devices
There's also LineageOS for older Android devices. While not so much as being "de-Googled" it is a newer version of Android for older devices, it doesn't come with all the garbage so in a way is de-Googled.
I've done LineageOS on my Samsung tablet and love it, battery life is longer runs smoother/faster but have had a glitch on battery shutting down, but may be unrelated to OS.
https://lineageos.org/