Honestly I think about what it would be like, or required, in order to live forever in this flesh sack and it becomes very obvious very quickly death is a mercy. Setting aside the metaphysical, the social catastrophe that would occur if people could live forever would be enormous.
Imagine eternally alive Nancy Pelosis for example. A gerontaucracy would set in very quickly leading to violent revolt by younger people who find the paths to success and power barred by the people who got there first.
Then of course there is the soul crushing weight of memory. Eventually you would find yourself a stranger in time, and just unable to cope. Weighed down by a lifetime of memories and past traumas. I think suicide would start to seem attractive in that scenario.
We are not meant to live forever. I believe something is waiting on the other side. But even if I did not not I would not want to live forever. That would be a cursed existence devoid of meaning and steeped in suffering.