I haven't used LineageOS for a long time, but I remember it being really good. And I used cyanogenmod which IIRC was it's predecessor.

GraapheneOS is a different ball game IMO, especially if you need to use Google play services etc, banking apps etc. I'm not sure what the current state of microg is or Google services on lineage.

I bought a second hand pixel 6, just for Graphene and when that died I bought another pixel.