I don't know how good /e/OS is, but at least there is a place to get it factory loaded on cell phones and install it on phone brands other than Google.
And then there is Lineage OS, which I've had good luck using the extend the life of phones in the past. I haven't tried it since Play Integrity started being such an important feature, but I suppose that just pushes one to be even more open source on their Lineage device. I've been wanting to try Lineage again, but I misplaced the phone I want to try it on.
Buying a phone from Google is hardly ideal, but the effect is limited by the earnings being nothing but a blip in the grand scheme of things. Having an alternative OS is important enough to offset it IMO.
But today you just have a private dinner with the president and he'll wave it away.