I think its awesome they are finally extended support given the cost of these phones and if properly careful they can have long duty lifespans.
I will keep my pixels till security and graphene updates end but I will still upgrade my primary phone as new models hardware security improves.
Also with esims and multi profile storage makes it easy to swap between phones almost as easy as physical sims. I usually upgrade every other model release.
Lots of great uses for older pixels that are not eol.