I spent some time today helping to refresh the great work of Ariel Sanchez Mora (arielsanchezmora.com) and Christina Griffus on vSphere 8.0 upgrade guidance. I added some specific info for vSphere/ESXi 8.0 Update 2.
Check out the new repo at https://github.com/vSphere8upgrade/7u3-to-8u2
Original source material at https://github.com/vSphere8upgrade/7u3-to-8u1
You can see the U2 content is still a Work in Progress. Follow along as it gets better.
vChris 