Well, this post is currently only about those two features, and there are only a few OK suggestions. And to also get the display and gaming features, you’d need much more work. Extracting the Moto apps as APKs wouldn’t work, as they require many daemons and services running in the background. So the only way to get those features that I see is to install the Moto ROM directly. There are all ROMs available, though they aren’t from Moto themselves. I do not think flashing it on another Phone would really work tho. So the only way I see to get all features perfectly would be by actually buying a Moto Phone.
The only downside of Moto Phones is the Camera, really. The 700€ edge 40 Pro is only behind the Galaxy S23 Ultra in Camera, display resolution (though who really needs 4k?) and battery size, but has a higher Hz refresh rate, 4 GB more RAM and charges nearly 3 times as fast. I personally got the Edge 20, which is more than enough (except for the camera). The latest to fully support bootloader unlocking and therefore Lineage is the Edge 30 tho, afaik.