I am just about to say goodbye for my note 3 and eyeballing a second hand pixel7.
The reason of my choice is that it is ok with graphene os as well that I might give a shot, but probably just stick to lineage.
For pixel7
Current version: 21 (Android 14)
Kernel: 510
Source lineageos
Will this device last (be maintained) at least for 5 years?